diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 72500a0..19aa5c3 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -6,8 +6,8 @@ jobs:
   build:
     strategy:
       matrix:
-        ruby: ['3.2', '3.3', '3.4']
-        rails: ["7.1", "7.2", "8.0"]
+        ruby: ['3.2', '3.3', '3.4', "4.0"]
+        rails: ["7.1", "7.2", "8.0", "8.1"]
 
     runs-on: ubuntu-latest
 
diff --git a/.gitignore b/.gitignore
index dd48f47..ca4f590 100644
--- a/.gitignore
+++ b/.gitignore
@@ -9,3 +9,5 @@ gemfiles/*.lock
 /spec/reports/
 /tmp/
 /test/dummy_app/log/*
+/test/dummy_app/tmp/*
+/vendor/bundle
diff --git a/CHANGELOG.md b/CHANGELOG.md
new file mode 100644
index 0000000..e6c9aa3
--- /dev/null
+++ b/CHANGELOG.md
@@ -0,0 +1,35 @@
+# Changelog
+All notable changes to this project will be documented in this file.
+
+The format is based on Keep a Changelog, and this project adheres to Semantic Versioning.
+
+## [Unreleased]
+
+## [1.0.0] - 2026-01-28
+### Breaking
+- Templates are no longer executed by invoking lambdas directly; they are compiled into methods.
+
+### Changed
+- Cache template methods by code hash to reduce Ruby method cache invalidation.
+- Use a renderer subclass that includes helpers instead of extending instances.
+
+### Fixed
+- Rename the config key `cache_enabled` to `template_cache_enabled`.
+- Add `/vendor/bundle` to `.gitignore`.
+
+## [0.1.0] - 2025-09-10
+### Changed
+- Default JSON serializer switched from Oj to ActiveSupport::JSON to better align with Rails defaults.
+- Development dependencies refreshed and benchmark script fixed for the latest Ruby/Rails stacks.
+- README formatting and examples improved for clarity.
+
+### Fixed
+- Resolved `MissingTemplate` errors introduced by the Rails 8 upgrade.
+- Added coverage for rendering when template/action names differ to avoid regressions.
+
+## [0.0.0] - 2021-11-02
+### Added
+- Initial SimpleJson renderer, templates (`.simple_json.rb` lambdas), and `SimpleJson::SimpleJsonRenderable` integration.
+- Template caching toggle and configurable template paths.
+- Rails generator hooks and dummy app scaffolding for getting started.
+- Migration helpers for comparing SimpleJson output against existing Jbuilder views.
diff --git a/README.md b/README.md
index ec5a6dc..0c2960a 100644
--- a/README.md
+++ b/README.md
@@ -176,110 +176,80 @@ Rails.application.config.generators.simple_json false
 
 Here're the results of a benchmark (which you can find [here](https://github.com/aktsk/simple_json/blob/master/test/dummy_app/app/controllers/benchmarks_controller.rb) in this repo) rendering a collection to JSON.
 
-### RAILS_ENV=development
-
 ```
 % ./bin/benchmark.sh
 
-* Rendering 10 partials via render_partial
-Warming up --------------------------------------
-                  jb   257.000  i/100ms
-            jbuilder   108.000  i/100ms
-         simple_json     2.039k i/100ms
-Calculating -------------------------------------
-                  jb      2.611k (± 7.1%) i/s -     13.107k in   5.046110s
-            jbuilder      1.084k (± 3.5%) i/s -      5.508k in   5.088845s
-         simple_json     20.725k (± 4.4%) i/s -    103.989k in   5.026914s
-
-Comparison:
-         simple_json:    20725.5 i/s
-                  jb:     2610.5 i/s - 7.94x  (± 0.00) slower
-            jbuilder:     1083.8 i/s - 19.12x  (± 0.00) slower
-
-
-* Rendering 100 partials via render_partial
-Warming up --------------------------------------
-                  jb    88.000  i/100ms
-            jbuilder    14.000  i/100ms
-         simple_json   290.000  i/100ms
-Calculating -------------------------------------
-                  jb    928.202  (± 5.0%) i/s -      4.664k in   5.037314s
-            jbuilder    137.980  (± 6.5%) i/s -    700.000  in   5.094658s
-         simple_json      2.931k (± 5.2%) i/s -     14.790k in   5.060707s
-
-Comparison:
-         simple_json:     2931.1 i/s
-                  jb:      928.2 i/s - 3.16x  (± 0.00) slower
-            jbuilder:      138.0 i/s - 21.24x  (± 0.00) slower
-
-
-* Rendering 1000 partials via render_partial
-Warming up --------------------------------------
-                  jb    11.000  i/100ms
-            jbuilder     1.000  i/100ms
-         simple_json    29.000  i/100ms
-Calculating -------------------------------------
-                  jb    106.150  (± 5.7%) i/s -    539.000  in   5.094255s
-            jbuilder     13.012  (± 7.7%) i/s -     65.000  in   5.054016s
-         simple_json    271.683  (± 5.2%) i/s -      1.363k in   5.030646s
-
-Comparison:
-         simple_json:      271.7 i/s
-                  jb:      106.1 i/s - 2.56x  (± 0.00) slower
-            jbuilder:       13.0 i/s - 20.88x  (± 0.00) slower
-```
-
-### RAILS_ENV=production
-
-```
-% RAILS_ENV=production ./bin/benchmark.sh
+SimpleJson Benchmark
+ruby: 4.0.1
+rails: 8.1.1
+json: 2.15.2
+oj: 3.16.11
+----------------------
 
-* Rendering 10 partials via render_partial
+* Rendering 10 partials via render_to_string
+ruby 4.0.1 (2026-01-13 revision e04267a14b) +PRISM [arm64-darwin24]
 Warming up --------------------------------------
-                  jb   246.000  i/100ms
-            jbuilder    97.000  i/100ms
-         simple_json     1.957k i/100ms
+                  jb    23.000 i/100ms
+            jbuilder    30.000 i/100ms
+     simple_json(oj)    40.000 i/100ms
+simple_json(AS::json)
+                        46.000 i/100ms
 Calculating -------------------------------------
-                  jb      2.611k (± 4.1%) i/s -     13.038k in   5.002304s
-            jbuilder    972.031  (± 4.7%) i/s -      4.850k in   5.001200s
-         simple_json     20.383k (± 3.8%) i/s -    101.764k in   4.999989s
+                  jb    298.518 (±23.4%) i/s    (3.35 ms/i) -      1.426k in   5.019370s
+            jbuilder    255.925 (± 4.3%) i/s    (3.91 ms/i) -      1.290k in   5.052973s
+     simple_json(oj)    270.192 (± 3.7%) i/s    (3.70 ms/i) -      1.360k in   5.039635s
+simple_json(AS::json)
+                        297.476 (±10.1%) i/s    (3.36 ms/i) -      1.518k in   5.145803s
 
 Comparison:
-         simple_json:    20382.8 i/s
-                  jb:     2611.3 i/s - 7.81x  (± 0.00) slower
-            jbuilder:      972.0 i/s - 20.97x  (± 0.00) slower
+                  jb:      298.5 i/s
+simple_json(AS::json):      297.5 i/s - same-ish: difference falls within error
+     simple_json(oj):      270.2 i/s - same-ish: difference falls within error
+            jbuilder:      255.9 i/s - same-ish: difference falls within error
 
 
-* Rendering 100 partials via render_partial
+* Rendering 100 partials via render_to_string
+ruby 4.0.1 (2026-01-13 revision e04267a14b) +PRISM [arm64-darwin24]
 Warming up --------------------------------------
-                  jb    90.000  i/100ms
-            jbuilder    11.000  i/100ms
-         simple_json   280.000  i/100ms
+                  jb    19.000 i/100ms
+            jbuilder    14.000 i/100ms
+     simple_json(oj)    15.000 i/100ms
+simple_json(AS::json)
+                        26.000 i/100ms
 Calculating -------------------------------------
-                  jb    883.446  (± 4.8%) i/s -      4.410k in   5.003438s
-            jbuilder    119.932  (± 8.3%) i/s -    605.000  in   5.085382s
-         simple_json      2.886k (± 4.2%) i/s -     14.560k in   5.054327s
+                  jb    186.051 (±12.9%) i/s    (5.37 ms/i) -    912.000 in   5.075117s
+            jbuilder    144.279 (± 2.1%) i/s    (6.93 ms/i) -    728.000 in   5.048538s
+     simple_json(oj)    159.254 (± 1.9%) i/s    (6.28 ms/i) -    810.000 in   5.088178s
+simple_json(AS::json)
+                        249.690 (± 6.0%) i/s    (4.00 ms/i) -      1.248k in   5.017042s
 
 Comparison:
-         simple_json:     2885.7 i/s
-                  jb:      883.4 i/s - 3.27x  (± 0.00) slower
-            jbuilder:      119.9 i/s - 24.06x  (± 0.00) slower
+simple_json(AS::json):      249.7 i/s
+                  jb:      186.1 i/s - 1.34x  slower
+     simple_json(oj):      159.3 i/s - 1.57x  slower
+            jbuilder:      144.3 i/s - 1.73x  slower
 
 
-* Rendering 1000 partials via render_partial
+* Rendering 1000 partials via render_to_string
+ruby 4.0.1 (2026-01-13 revision e04267a14b) +PRISM [arm64-darwin24]
 Warming up --------------------------------------
-                  jb    12.000  i/100ms
-            jbuilder     1.000  i/100ms
-         simple_json    32.000  i/100ms
+                  jb     4.000 i/100ms
+            jbuilder     2.000 i/100ms
+     simple_json(oj)     2.000 i/100ms
+simple_json(AS::json)
+                        10.000 i/100ms
 Calculating -------------------------------------
-                  jb    124.627  (± 4.8%) i/s -    624.000  in   5.018515s
-            jbuilder     12.710  (± 7.9%) i/s -     64.000  in   5.073018s
-         simple_json    314.896  (± 3.2%) i/s -      1.600k in   5.086509s
+                  jb     48.691 (± 2.1%) i/s   (20.54 ms/i) -    244.000 in   5.013815s
+            jbuilder     27.930 (± 3.6%) i/s   (35.80 ms/i) -    140.000 in   5.016897s
+     simple_json(oj)     29.083 (± 6.9%) i/s   (34.38 ms/i) -    146.000 in   5.039076s
+simple_json(AS::json)
+                         99.792 (± 7.0%) i/s   (10.02 ms/i) -    500.000 in   5.037716s
 
 Comparison:
-         simple_json:      314.9 i/s
-                  jb:      124.6 i/s - 2.53x  (± 0.00) slower
-            jbuilder:       12.7 i/s - 24.78x  (± 0.00) slower
+simple_json(AS::json):       99.8 i/s
+                  jb:       48.7 i/s - 2.05x  slower
+     simple_json(oj):       29.1 i/s - 3.43x  slower
+            jbuilder:       27.9 i/s - 3.57x  slower
 ```
 
 ## Migrating from Jbuilder
diff --git a/gemfiles/rails_8.1.gemfile b/gemfiles/rails_8.1.gemfile
new file mode 100644
index 0000000..6f2a3da
--- /dev/null
+++ b/gemfiles/rails_8.1.gemfile
@@ -0,0 +1,9 @@
+# frozen_string_literal: true
+
+source 'https://rubygems.org'
+
+gemspec path: '../'
+
+gem 'jbuilder'
+gem 'rails', '~> 8.1.0'
+gem 'selenium-webdriver'
diff --git a/lib/simple_json/version.rb b/lib/simple_json/version.rb
index 285ef66..2809975 100644
--- a/lib/simple_json/version.rb
+++ b/lib/simple_json/version.rb
@@ -1,5 +1,5 @@
 # frozen_string_literal: true
 
 module SimpleJson
-  VERSION = '0.1.0'
+  VERSION = '1.0.0'
 end
diff --git a/simple_json.gemspec b/simple_json.gemspec
index 3ca5f23..c339c35 100644
--- a/simple_json.gemspec
+++ b/simple_json.gemspec
@@ -25,7 +25,7 @@ Gem::Specification.new do |spec|
   spec.add_development_dependency 'action_args'
   spec.add_development_dependency 'bundler'
   spec.add_development_dependency 'debug'
-  spec.add_development_dependency 'rails', '~> 8.0'
+  spec.add_development_dependency 'rails', '>= 7.1'
   spec.add_development_dependency 'rake'
   spec.add_development_dependency 'selenium-webdriver'
   spec.add_development_dependency 'test-unit-rails'
diff --git a/test/dummy_app/app/controllers/benchmarks_controller.rb b/test/dummy_app/app/controllers/benchmarks_controller.rb
index d5a2cca..5646a10 100644
--- a/test/dummy_app/app/controllers/benchmarks_controller.rb
+++ b/test/dummy_app/app/controllers/benchmarks_controller.rb
@@ -1,37 +1,30 @@
 # frozen_string_literal: true
 
-require 'benchmark/ips'
-
 class BenchmarksController < ApplicationController
-  def index(n = '100')
-    @comments = 1.upto(n.to_i).map { |i| Comment.new(i, nil, "comment #{i}") }
+  before_action :prepare_comments
+
+  def self.comments
+    @comments ||= 1.upto(1000).map { |i| Comment.new(i, nil, "comment #{i}") }
+  end
+
+  def jb
+  end
 
-    jb = render_to_string 'index_jb'
-    jbuilder = render_to_string 'index_jbuilder'
+  def jbuilder
+  end
 
+  def simple_json_oj
     SimpleJson.json_module = SimpleJson::Json::Oj
-    simple_json = render_to_string 'index'
+  end
 
+  def simple_json_as_json
     SimpleJson.json_module = ActiveSupport::JSON
-    simple_json_active_support_json = render_to_string 'index'
-
-    raise 'jb != jbuilder' unless jb == jbuilder
-    raise 'simple_json != jbuilder' unless simple_json == jbuilder
-    raise 'simple_json_active_support_json != jbuilder' unless simple_json_active_support_json == jbuilder
-
-    result = Benchmark.ips do |x|
-      x.report('jb') { render_to_string 'index_jb' }
-      x.report('jbuilder') { render_to_string 'index_jbuilder' }
-      x.report('simple_json(oj)') {
-        SimpleJson.json_module = SimpleJson::Json::Oj
-        render_to_string 'index'
-      }
-      x.report('simple_json(AS::json)') {
-        SimpleJson.json_module = ActiveSupport::JSON
-        render_to_string 'index'
-      }
-      x.compare!
-    end
-    render plain: result.data.to_s
+  end
+
+  private
+
+  def prepare_comments
+    n = params.fetch(:n, 100).to_i
+    @comments = self.class.comments.take(n)
   end
 end
diff --git a/test/dummy_app/app/views/benchmarks/_comment_jb.json.jb b/test/dummy_app/app/views/benchmarks/_comment_jb.json.jb
index 1a0202d..db578aa 100644
--- a/test/dummy_app/app/views/benchmarks/_comment_jb.json.jb
+++ b/test/dummy_app/app/views/benchmarks/_comment_jb.json.jb
@@ -1,3 +1,55 @@
 # frozen_string_literal: true
 
-{ body: comment.body }
+length = comment.body.length
+likes = comment.id * 3
+dislikes = comment.id % 4
+rating = (likes.to_f / (dislikes.zero? ? 1 : dislikes)).round(2)
+position = comment_counter + 1
+
+{
+  id: comment.id,
+  body: comment.body,
+  metrics: {
+    length: length,
+    readability: (length / 5.0).round(2),
+    engagement: {
+      likes: likes,
+      dislikes: dislikes,
+      rating: rating
+    }
+  },
+  author: {
+    name: "user-#{comment.id}",
+    active: comment.id.odd?,
+    badges: (comment.id % 3).zero? ? %w[insightful] : [],
+    contact: {
+      email: "user#{comment.id}@example.com",
+      url: "https://example.com/users/#{comment.id}"
+    },
+    settings: {
+      theme: comment.id.even? ? 'dark' : 'light',
+      timezone: "UTC+#{(comment.id % 5) - 2}"
+    }
+  },
+  tags: ['bench', "comment-#{comment.id}", (comment.id.even? ? 'even' : nil)].compact,
+  flags: {
+    pinned: position == 1,
+    hidden: (comment.id % 5).zero?
+  },
+  metadata: {
+    position: position,
+    attachments: (comment.id % 4).zero? ? [{ filename: "attachment-#{comment.id}.txt", size: comment.id * 128 }] : [],
+    history: [
+      { version: 1, updated_by: "user-#{comment.id}", updated_at: '2024-01-01T00:00:00Z' },
+      { version: 2, updated_by: "user-#{comment.id}", updated_at: '2024-01-02T00:00:00Z' }
+    ]
+  },
+  links: {
+    self: "/comments/#{comment.id}",
+    post: "/posts/#{comment.post&.id || 1}"
+  },
+  extras: {
+    mood: %w[happy neutral excited][comment.id % 3],
+    score: comment.id * position
+  }
+}
diff --git a/test/dummy_app/app/views/benchmarks/_comment_jbuilder.json.jbuilder b/test/dummy_app/app/views/benchmarks/_comment_jbuilder.json.jbuilder
index 46c16ec..0066f21 100644
--- a/test/dummy_app/app/views/benchmarks/_comment_jbuilder.json.jbuilder
+++ b/test/dummy_app/app/views/benchmarks/_comment_jbuilder.json.jbuilder
@@ -1,3 +1,61 @@
 # frozen_string_literal: true
 
+length = comment.body.length
+likes = comment.id * 3
+dislikes = comment.id % 4
+rating = (likes.to_f / (dislikes.zero? ? 1 : dislikes)).round(2)
+position = comment_counter + 1
+
+json.id comment.id
 json.body comment.body
+
+json.metrics do
+  json.length length
+  json.readability (length / 5.0).round(2)
+  json.engagement do
+    json.likes likes
+    json.dislikes dislikes
+    json.rating rating
+  end
+end
+
+json.author do
+  json.name "user-#{comment.id}"
+  json.active comment.id.odd?
+  json.badges ((comment.id % 3).zero? ? %w[insightful] : [])
+  json.contact do
+    json.email "user#{comment.id}@example.com"
+    json.url "https://example.com/users/#{comment.id}"
+  end
+  json.settings do
+    json.theme(comment.id.even? ? 'dark' : 'light')
+    json.timezone "UTC+#{(comment.id % 5) - 2}"
+  end
+end
+
+json.tags ['bench', "comment-#{comment.id}", (comment.id.even? ? 'even' : nil)].compact
+
+json.flags do
+  json.pinned position == 1
+  json.hidden (comment.id % 5).zero?
+end
+
+json.metadata do
+  json.position position
+  attachments = (comment.id % 4).zero? ? [{ filename: "attachment-#{comment.id}.txt", size: comment.id * 128 }] : []
+  json.attachments attachments
+  json.history [
+    { version: 1, updated_by: "user-#{comment.id}", updated_at: '2024-01-01T00:00:00Z' },
+    { version: 2, updated_by: "user-#{comment.id}", updated_at: '2024-01-02T00:00:00Z' }
+  ]
+end
+
+json.links do
+  json.self "/comments/#{comment.id}"
+  json.post "/posts/#{comment.post&.id || 1}"
+end
+
+json.extras do
+  json.mood %w[happy neutral excited][comment.id % 3]
+  json.score comment.id * position
+end
diff --git a/test/dummy_app/app/views/benchmarks/_comment_simple_json.simple_json.rb b/test/dummy_app/app/views/benchmarks/_comment_simple_json.simple_json.rb
index 09565b8..0d249a7 100644
--- a/test/dummy_app/app/views/benchmarks/_comment_simple_json.simple_json.rb
+++ b/test/dummy_app/app/views/benchmarks/_comment_simple_json.simple_json.rb
@@ -1,7 +1,56 @@
 # frozen_string_literal: true
 
-->(comment:) {
+->(comment:, position:) {
+  length = comment.body.length
+  likes = comment.id * 3
+  dislikes = comment.id % 4
+  rating = (likes.to_f / (dislikes.zero? ? 1 : dislikes)).round(2)
+
   {
-    body: comment.body
+    id: comment.id,
+    body: comment.body,
+    metrics: {
+      length: length,
+      readability: (length / 5.0).round(2),
+      engagement: {
+        likes: likes,
+        dislikes: dislikes,
+        rating: rating
+      }
+    },
+    author: {
+      name: "user-#{comment.id}",
+      active: comment.id.odd?,
+      badges: (comment.id % 3).zero? ? %w[insightful] : [],
+      contact: {
+        email: "user#{comment.id}@example.com",
+        url: "https://example.com/users/#{comment.id}"
+      },
+      settings: {
+        theme: comment.id.even? ? 'dark' : 'light',
+        timezone: "UTC+#{(comment.id % 5) - 2}"
+      }
+    },
+    tags: ['bench', "comment-#{comment.id}", (comment.id.even? ? 'even' : nil)].compact,
+    flags: {
+      pinned: position == 1,
+      hidden: (comment.id % 5).zero?
+    },
+    metadata: {
+      position: position,
+      attachments: (comment.id % 4).zero? ? [{ filename: "attachment-#{comment.id}.txt", size: comment.id * 128 }] : [],
+      history: [
+        { version: 1, updated_by: "user-#{comment.id}", updated_at: '2024-01-01T00:00:00Z' },
+        { version: 2, updated_by: "user-#{comment.id}", updated_at: '2024-01-02T00:00:00Z' }
+      ]
+    },
+    links: {
+      self: "/comments/#{comment.id}",
+      post: "/posts/#{comment.post&.id || 1}"
+    },
+    extras: {
+      mood: %w[happy neutral excited][comment.id % 3],
+      score: comment.id * position
+    }
   }
 }
diff --git a/test/dummy_app/app/views/benchmarks/index.simple_json.rb b/test/dummy_app/app/views/benchmarks/index.simple_json.rb
deleted file mode 100644
index e37cf1e..0000000
--- a/test/dummy_app/app/views/benchmarks/index.simple_json.rb
+++ /dev/null
@@ -1,5 +0,0 @@
-# frozen_string_literal: true
-
-{
-  comments: @comments.map { |comment| partial!('benchmarks/_comment_simple_json', comment: comment) }
-}
diff --git a/test/dummy_app/app/views/benchmarks/index_jb.json.jb b/test/dummy_app/app/views/benchmarks/index_jb.json.jb
deleted file mode 100644
index 592d814..0000000
--- a/test/dummy_app/app/views/benchmarks/index_jb.json.jb
+++ /dev/null
@@ -1,3 +0,0 @@
-# frozen_string_literal: true
-
-{ comments: render(partial: 'comment_jb', collection: @comments, as: 'comment') }
diff --git a/test/dummy_app/app/views/benchmarks/index_jbuilder.json.jbuilder b/test/dummy_app/app/views/benchmarks/index_jbuilder.json.jbuilder
deleted file mode 100644
index 1dca7dc..0000000
--- a/test/dummy_app/app/views/benchmarks/index_jbuilder.json.jbuilder
+++ /dev/null
@@ -1,5 +0,0 @@
-# frozen_string_literal: true
-
-json.comments do
-  json.partial! 'comment_jbuilder', collection: @comments, as: 'comment'
-end
diff --git a/test/dummy_app/app/views/benchmarks/jb.json.jb b/test/dummy_app/app/views/benchmarks/jb.json.jb
new file mode 100644
index 0000000..eb71ef6
--- /dev/null
+++ b/test/dummy_app/app/views/benchmarks/jb.json.jb
@@ -0,0 +1,18 @@
+# frozen_string_literal: true
+
+lengths = @comments.map { |comment| comment.body.length }
+avg_length = lengths.empty? ? 0.0 : (lengths.sum.to_f / lengths.size).round(2)
+
+{
+  meta: {
+    total_comments: @comments.size,
+    longest_comment_length: lengths.max || 0,
+    average_comment_length: avg_length,
+    tags: %w[bench simple json],
+    flags: {
+      has_many: @comments.size > 500,
+      empty: @comments.empty?
+    }
+  },
+  comments: render(partial: 'comment_jb', collection: @comments, as: 'comment')
+}
diff --git a/test/dummy_app/app/views/benchmarks/jbuilder.json.jbuilder b/test/dummy_app/app/views/benchmarks/jbuilder.json.jbuilder
new file mode 100644
index 0000000..8a28de6
--- /dev/null
+++ b/test/dummy_app/app/views/benchmarks/jbuilder.json.jbuilder
@@ -0,0 +1,19 @@
+# frozen_string_literal: true
+
+lengths = @comments.map { |comment| comment.body.length }
+avg_length = lengths.empty? ? 0.0 : (lengths.sum.to_f / lengths.size).round(2)
+
+json.meta do
+  json.total_comments @comments.size
+  json.longest_comment_length lengths.max || 0
+  json.average_comment_length avg_length
+  json.tags %w[bench simple json]
+  json.flags do
+    json.has_many @comments.size > 500
+    json.empty @comments.empty?
+  end
+end
+
+json.comments do
+  json.partial! 'comment_jbuilder', collection: @comments, as: 'comment'
+end
diff --git a/test/dummy_app/app/views/benchmarks/simple_json_as_json.simple_json.rb b/test/dummy_app/app/views/benchmarks/simple_json_as_json.simple_json.rb
new file mode 100644
index 0000000..b5dc72e
--- /dev/null
+++ b/test/dummy_app/app/views/benchmarks/simple_json_as_json.simple_json.rb
@@ -0,0 +1,20 @@
+# frozen_string_literal: true
+
+lengths = @comments.map { |comment| comment.body.length }
+avg_length = lengths.empty? ? 0.0 : (lengths.sum.to_f / lengths.size).round(2)
+
+{
+  meta: {
+    total_comments: @comments.size,
+    longest_comment_length: lengths.max || 0,
+    average_comment_length: avg_length,
+    tags: %w[bench simple json],
+    flags: {
+      has_many: @comments.size > 500,
+      empty: @comments.empty?
+    }
+  },
+  comments: @comments.each_with_index.map do |comment, index|
+    partial!('benchmarks/_comment_simple_json', comment: comment, position: index + 1)
+  end
+}
diff --git a/test/dummy_app/app/views/benchmarks/simple_json_oj.simple_json.rb b/test/dummy_app/app/views/benchmarks/simple_json_oj.simple_json.rb
new file mode 100644
index 0000000..b5dc72e
--- /dev/null
+++ b/test/dummy_app/app/views/benchmarks/simple_json_oj.simple_json.rb
@@ -0,0 +1,20 @@
+# frozen_string_literal: true
+
+lengths = @comments.map { |comment| comment.body.length }
+avg_length = lengths.empty? ? 0.0 : (lengths.sum.to_f / lengths.size).round(2)
+
+{
+  meta: {
+    total_comments: @comments.size,
+    longest_comment_length: lengths.max || 0,
+    average_comment_length: avg_length,
+    tags: %w[bench simple json],
+    flags: {
+      has_many: @comments.size > 500,
+      empty: @comments.empty?
+    }
+  },
+  comments: @comments.each_with_index.map do |comment, index|
+    partial!('benchmarks/_comment_simple_json', comment: comment, position: index + 1)
+  end
+}
diff --git a/test/dummy_app/bin/bench.rb b/test/dummy_app/bin/bench.rb
index d795a88..a5cd789 100644
--- a/test/dummy_app/bin/bench.rb
+++ b/test/dummy_app/bin/bench.rb
@@ -1,6 +1,72 @@
 # frozen_string_literal: true
 
 require 'action_dispatch/testing/integration'
+require 'benchmark/ips'
+require 'json'
+
+SCENARIOS = [
+  {
+    label: 'jb',
+    path: '/benchmarks/jb.json',
+    decoder: ->(body) { JSON.parse(body) }
+  },
+  {
+    label: 'jbuilder',
+    path: '/benchmarks/jbuilder.json',
+    decoder: ->(body) { JSON.parse(body) }
+  },
+  {
+    label: 'simple_json(oj)',
+    path: '/benchmarks/simple_json_oj.json',
+    decoder: ->(body) { JSON.parse(body) }
+  },
+  {
+    label: 'simple_json(AS::json)',
+    path: '/benchmarks/simple_json_as_json.json',
+    decoder: ->(body) { JSON.parse(body) }
+  }
+].freeze
+
+SimpleJson.enable_template_cache
+
+def perform_request(path, n:)
+  session = ActionDispatch::Integration::Session.new(Rails.application)
+  session.get(path, params: { n: n })
+  raise "Unexpected status #{session.response.status} for #{path}" unless session.response.successful?
+  session.response
+end
+
+def verify_payloads(n)
+  baseline = SCENARIOS.first
+  expected_response = perform_request(baseline[:path], n: n)
+  expected_payload = baseline[:decoder].call(expected_response.body)
+
+  SCENARIOS[1..].each do |scenario|
+    response = perform_request(scenario[:path], n: n)
+    if scenario[:media_type] && response.media_type != scenario[:media_type]
+      raise "#{scenario[:label]} content type mismatch: #{response.media_type}"
+    end
+
+    actual_payload = scenario[:decoder].call(response.body)
+    raise "#{scenario[:label]} payload mismatch" unless actual_payload == expected_payload
+  end
+end
+
+def benchmark_requests(n)
+  puts
+  puts "* Rendering #{n} partials via render_to_string"
+
+  verify_payloads(n)
+
+  Benchmark.ips do |x|
+    SCENARIOS.each do |scenario|
+      x.report(scenario[:label]) do
+        perform_request(scenario[:path], n: n)
+      end
+    end
+    x.compare!
+  end
+end
 
 puts 'SimpleJson Benchmark'
 puts "ruby: #{RUBY_VERSION}"
@@ -9,13 +75,6 @@
 puts "oj: #{Oj::VERSION}"
 puts "----------------------"
 
-puts '* Rendering 10 partials via render_partial'
-ActionDispatch::Integration::Session.new(Rails.application).get '/benchmarks.json?n=10'
-
-puts
-puts '* Rendering 100 partials via render_partial'
-ActionDispatch::Integration::Session.new(Rails.application).get '/benchmarks.json?n=100'
-
-puts
-puts '* Rendering 1000 partials via render_partial'
-ActionDispatch::Integration::Session.new(Rails.application).get '/benchmarks.json?n=1000'
+[10, 100, 1000].each do |n|
+  benchmark_requests(n)
+end
diff --git a/test/dummy_app/config/routes.rb b/test/dummy_app/config/routes.rb
index 87c4299..f32cd37 100644
--- a/test/dummy_app/config/routes.rb
+++ b/test/dummy_app/config/routes.rb
@@ -15,7 +15,14 @@
   resources :posts_with_cache, only: :show
   resources :posts_with_multiple_view_paths, only: :show
 
-  resources :benchmarks, only: :index
+  resources :benchmarks, only: [] do
+    collection do
+      get :jb, defaults: { format: :json }
+      get :jbuilder, defaults: { format: :json }
+      get :simple_json_oj, defaults: { format: :json }
+      get :simple_json_as_json, defaults: { format: :json }
+    end
+  end
 
   if Rails::VERSION::MAJOR >= 5
     namespace :api do