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Garry Tan
92cfd07a79
* feat: add configurable model tiers and advisory freshness * fix: disclose role selections before Claude review execution * fix: reject malformed model policies and keep model pins portable * fix: separate readiness diagnostics and bound version checks * fix: preserve actionable model failures and validate review inputs before probes * fix: retry released probe locks and retain late-rejection repair context * feat: finalize configurable model tiers and verified release repairs * fix: preserve strict model policy reads on Windows * fix: keep fixture probes read-only and clarify pending CEO decisions * fix: verify native terminal closure before bounded descriptor settlement
1.3 KiB
1.3 KiB
Models overview
Compare models
If you're unsure which model to use, start with Claude Opus 5.5 for most workloads. Use Claude Fable 5.1 for demanding reasoning and long-horizon agentic work.
| Feature | Claude Fable 5.1 | Claude Opus 5.5 | Claude Sonnet 5.5 | Claude Haiku 5.5 |
|---|---|---|---|---|
| Model page | Claude Fable 5.1 | Claude Opus 5.5 | Claude Sonnet 5.5 | Claude Haiku 5.5 |
| Claude API ID | claude-fable-5-1 |
claude-opus-5-5 |
claude-sonnet-5-5 |
claude-haiku-5-5 |
| Amazon Bedrock ID | anthropic.claude-fable-5-1 |
anthropic.claude-opus-5-5 |
anthropic.claude-sonnet-5-5 |
anthropic.claude-haiku-5-5 |
- Pricing: prompt cache reads cost 10% of the base input price (2.5% on Claude Fable 5.1 and Claude Mythos 5.1, 5% on Claude Opus 5.5). See Pricing for per-platform pricing. Incidental ID:
claude-mythos-5-1.
Using the Models API
Legacy claude-fable-5 and unrelated claude-mythos-5-1 are not recommendations.