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[BOT ISSUE] Bedrock: add missing Mistral Devstral 2 123B and Magistral Small 2509 models #658

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Description

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Summary

Two Mistral AI models are available on Amazon Bedrock as Standard-tier on-demand models but have no entries in model_list.json. Neither devstral nor magistral appear anywhere in the catalog — these are entirely missing model families.

Missing Model IDs

Model ID Context Window Max Output Reasoning Multimodal Format
mistral.devstral-2-123b 256,000 32,000 no no (text only) converse
mistral.magistral-small-2509 128,000 40,000 yes yes (text+image) converse

Verification

mistral.devstral-2-123b

  • Source 1: Bedrock model card — Programmatic Access table confirms model ID mistral.devstral-2-123b, 256K context, 32K max output. Active lifecycle, Standard/Priority/Flex tiers. Available in 14 regions (us-east-1, us-east-2, us-west-2, eu-central-1, eu-north-1, eu-south-1, eu-west-1, eu-west-2, ap-northeast-1, ap-south-1, ap-southeast-2, ap-southeast-3, sa-east-1, ap-southeast-4).
  • Source 2: Mistral AI models docs — Lists Devstral 2 as a production "frontier code agents model" with ID devstral-2-25-12. Confirms it is an active, non-deprecated model.

mistral.magistral-small-2509

  • Source 1: Bedrock model card — Programmatic Access table confirms model ID mistral.magistral-small-2509, 128K context, 40K max output, reasoning supported, image input. Active lifecycle on Bedrock, Standard/Priority/Flex tiers. Available in 14 regions.
  • Source 2: Mistral AI models docs — Lists magistral-small-2509 as deprecated on Mistral's own platform (retirement July 31, 2026, replacement: Mistral Small 4). Still actively served on Bedrock.

Note: Since Magistral Small is deprecated by Mistral (retirement 2026-07-31), the catalog entry should include deprecation_date: "2026-07-31" and parent pointing to the replacement model.

Fields NOT verified

  • input_cost_per_mil_tokens / output_cost_per_mil_tokens — Pricing not extracted; see Bedrock pricing page.

Local files inspected

  • packages/proxy/schema/model_list.json — grep for devstral and magistral returns no matches at all
  • No existing issues cover these model IDs

Verification checklist

  • Cross-source: Both model IDs confirmed on Bedrock model cards AND Mistral's own documentation
  • Recent commits: No devstral or magistral entries exist in any recent commit to model_list.json
  • ID format: Follows Bedrock naming convention (mistral.<model-name>)
  • Existing issues: No existing issue covers these model IDs
provider: bedrock
type: missing-model
model_ids: mistral.devstral-2-123b, mistral.magistral-small-2509
confidence: high

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