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Sweep 22 Oct 2026 · 04:32Z Build v2.1.308 527 read Stable v2.1.308 Latest v2.1.308 Next v2.1.308 Feeds RSS JSON llms.txt llms-full.txt Unofficial
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Claude Code v2.1.195 ·

Model Catalog: New and Updated Models

Entry
JSON All of v2.1.195
EntryKind: in v2.1.195,
New FeaturesSection of the release
What

The model catalog has been reworked into a structured, versioned manifest (schema_version: 1) covering all current models. Several new models are now registered.

Details
  • New model entries added: claude-sonnet-4-6 (Sonnet 4.6, knowledge cutoff August 2025), claude-opus-4-6 (Opus 4.6, knowledge cutoff May 2025 with fast_mode), claude-opus-4-7 (Opus 4.7, native 1M context, xhigh_effort, knowledge cutoff January 2026, default effort xhigh), claude-opus-4-8 (Opus 4.8, native 1M context, lean_prompt, mid_conv_system, default effort high), claude-fable-5 (Fable 5, native 1M context, rejects_disabled_thinking, fable_5_mitigations).
  • Family aliases updated: opus → claude-opus-4-8, sonnet → claude-sonnet-4-6, fable → claude-fable-5.
  • All models include provider IDs for first_party, bedrock, vertex, foundry, anthropic_aws, mantle, and gateway.
  • Capability flags now include effort, max_effort, xhigh_effort, adaptive_thinking, context_management, fast_mode, lean_prompt, and mid_conv_system.
Evidence

New model catalog object with schema_version: 1 (search for "Generated by \bun run generate:model-catalog\", "claude-sonnet-4-6", "claude-fable-5")

Strings lifted out of the shipped bundle, so the claim above can be checked against them.

See this entry in the whole of v2.1.195 →

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