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2323## Compare models
2424
25If you're unsure which model to use, start with [Claude Opus 5](https://platform.claude.com/docs/en/models/opus-5/overview) for complex agentic coding and enterprise work; for the highest available capability, use [Claude Fable 5](https://platform.claude.com/docs/en/models/fable-5/overview). All current models support text and image input, text output, multilingual capabilities, vision, and tool use; each model's page lists the platforms it is available on.
25If you're unsure which model to use, start with [Claude Opus 5](https://platform.claude.com/docs/en/models/opus-5/overview) for most workloads. Use [Claude Fable 5.1](https://platform.claude.com/docs/en/models/fable-5-1/overview) for demanding reasoning and long-horizon agentic work, or when your evals on Claude Opus 5 at higher effort still fall short. All current models support text and image input, text output, multilingual capabilities, vision, and tool use. Each model's page lists the platforms it's available on.
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27| Feature | Claude Fable 5 | Claude Opus 5 | Claude Sonnet 5 | Claude Haiku 4.5 |
28| :-------------------------------------------------------------------------------------------------------- | :---------------------------------------------------------------------------- | :-------------------------------------------------------------------------- | :------------------------------------------------------------------------------ | :-------------------------------------------------------------------------------- |
29| Description | Next-generation intelligence for long-running agents | For complex agentic coding and enterprise work | The best combination of speed and intelligence | The fastest model with near-frontier intelligence |
30| Model page | [Claude Fable 5](https://platform.claude.com/docs/en/models/fable-5/overview) | [Claude Opus 5](https://platform.claude.com/docs/en/models/opus-5/overview) | [Claude Sonnet 5](https://platform.claude.com/docs/en/models/sonnet-5/overview) | [Claude Haiku 4.5](https://platform.claude.com/docs/en/models/haiku-4-5/overview) |
31| Comparative latency | Slower | Moderate | Fast | Fastest |
32| [Pricing](https://platform.claude.com/docs/en/about-claude/pricing) | $10 / input MTok, $50 / output MTok | $5 / input MTok, $25 / output MTok | $2 / input MTok, $10 / output MTok | $1 / input MTok, $5 / output MTok |
33| Claude API ID | `claude-fable-5` | `claude-opus-5` | `claude-sonnet-5` | `claude-haiku-4-5-20251001` |
34| [Thinking](https://platform.claude.com/docs/en/build-with-claude/thinking) | Adaptive (always on) | Adaptive | Adaptive | Extended |
35| [Default effort](https://platform.claude.com/docs/en/build-with-claude/effort) | `high` | `high` | `high` | Not supported |
36| [Context window](https://platform.claude.com/docs/en/build-with-claude/context-windows) | 1M tokens | 1M tokens | 1M tokens | 200K tokens |
37| Max output | 128K tokens | 128K tokens | 128K tokens | 64K tokens |
38| Reliable knowledge cutoff | Jan 2026 | May 2026 | Jan 2026 | Feb 2025 |
39| Training data cutoff | Jan 2026 | May 2026 | Jan 2026 | Jul 2025 |
40| [Retirement](https://platform.claude.com/docs/en/about-claude/model-deprecations) | Not sooner than June 9, 2027 | Not sooner than July 24, 2027 | Not sooner than June 30, 2027 | Not sooner than October 15, 2026 |
41| Claude API alias | `claude-fable-5` | `claude-opus-5` | `claude-sonnet-5` | `claude-haiku-4-5` |
42| [Amazon Bedrock ID](https://platform.claude.com/docs/en/build-with-claude/claude-in-amazon-bedrock) | `anthropic.claude-fable-5` | `anthropic.claude-opus-5` | `anthropic.claude-sonnet-5` | `anthropic.claude-haiku-4-5` |
43| [Google Cloud ID](https://platform.claude.com/docs/en/build-with-claude/claude-on-vertex-ai) | `claude-fable-5` | `claude-opus-5` | `claude-sonnet-5` | `claude-haiku-4-5@20251001` |
44| [Microsoft Foundry ID](https://platform.claude.com/docs/en/build-with-claude/claude-in-microsoft-foundry) | `claude-fable-5` | `claude-opus-5` | `claude-sonnet-5` | `claude-haiku-4-5` |
45| [Claude Platform on AWS ID](https://platform.claude.com/docs/en/build-with-claude/claude-platform-on-aws) | `claude-fable-5` | — | `claude-sonnet-5` | `claude-haiku-4-5` |
27| Feature | Claude Fable 5.1 | Claude Opus 5 | Claude Sonnet 5 | Claude Haiku 4.5 |
28| :-------------------------------------------------------------------------------------------------------- | :-------------------------------------------------------------------------------- | :-------------------------------------------------------------------------- | :------------------------------------------------------------------------------ | :-------------------------------------------------------------------------------- |
29| Description | For demanding reasoning and long-horizon agentic work | For complex agentic coding and enterprise work | The best combination of speed and intelligence | The fastest model with near-frontier intelligence |
30| Model page | [Claude Fable 5.1](https://platform.claude.com/docs/en/models/fable-5-1/overview) | [Claude Opus 5](https://platform.claude.com/docs/en/models/opus-5/overview) | [Claude Sonnet 5](https://platform.claude.com/docs/en/models/sonnet-5/overview) | [Claude Haiku 4.5](https://platform.claude.com/docs/en/models/haiku-4-5/overview) |
31| Comparative latency | Slower | Moderate | Fast | Fastest |
32| [Pricing](https://platform.claude.com/docs/en/about-claude/pricing) | $10 / input MTok, $50 / output MTok | $5 / input MTok, $25 / output MTok | $2 / input MTok, $10 / output MTok | $1 / input MTok, $5 / output MTok |
33| Claude API ID | `claude-fable-5-1` | `claude-opus-5` | `claude-sonnet-5` | `claude-haiku-4-5-20251001` |
34| [Thinking](https://platform.claude.com/docs/en/build-with-claude/thinking) | Adaptive (always on) | Adaptive | Adaptive | Extended |
35| [Default effort](https://platform.claude.com/docs/en/build-with-claude/effort) | `high` | `high` | `high` | Not supported |
36| [Context window](https://platform.claude.com/docs/en/build-with-claude/context-windows) | 1M tokens | 1M tokens | 1M tokens | 200K tokens |
37| Max output | 128K tokens | 128K tokens | 128K tokens | 64K tokens |
38| Reliable knowledge cutoff | Jun 2026 | May 2026 | Jan 2026 | Feb 2025 |
39| Training data cutoff | Jun 2026 | May 2026 | Jan 2026 | Jul 2025 |
40| [Retirement](https://platform.claude.com/docs/en/about-claude/model-deprecations) | Not sooner than September 1, 2027 | Not sooner than July 24, 2027 | Not sooner than June 30, 2027 | Not sooner than October 15, 2026 |
41| Claude API alias | `claude-fable-5-1` | `claude-opus-5` | `claude-sonnet-5` | `claude-haiku-4-5` |
42| [Amazon Bedrock ID](https://platform.claude.com/docs/en/build-with-claude/claude-in-amazon-bedrock) | `anthropic.claude-fable-5-1` | `anthropic.claude-opus-5` | `anthropic.claude-sonnet-5` | `anthropic.claude-haiku-4-5` |
43| [Google Cloud ID](https://platform.claude.com/docs/en/build-with-claude/claude-on-vertex-ai) | `claude-fable-5-1` | `claude-opus-5` | `claude-sonnet-5` | `claude-haiku-4-5@20251001` |
44| [Microsoft Foundry ID](https://platform.claude.com/docs/en/build-with-claude/claude-in-microsoft-foundry) | `claude-fable-5-1` | `claude-opus-5` | `claude-sonnet-5` | `claude-haiku-4-5` |
45| [Claude Platform on AWS ID](https://platform.claude.com/docs/en/build-with-claude/claude-platform-on-aws) | `claude-fable-5-1` | — | `claude-sonnet-5` | `claude-haiku-4-5` |
4646
4747* **Comparative latency:** Relative to the current lineup. Actual latency depends on prompt length, output length, and thinking effort.
4848* **Pricing:** Base price per million tokens. Batch API requests are 50% off; prompt cache reads cost 10% of the base input price. See Pricing for cache writes, long-context, and per-platform pricing.
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6262See [Model IDs and versioning](https://platform.claude.com/docs/en/about-claude/models/model-ids-and-versions) and [Pricing](https://platform.claude.com/docs/en/about-claude/pricing).
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64Legacy models (still available): [Claude Opus 4.8](https://platform.claude.com/docs/en/models/opus-4-8/overview), [Claude Opus 4.7](https://platform.claude.com/docs/en/models/opus-4-7/overview), [Claude Opus 4.6](https://platform.claude.com/docs/en/models/opus-4-6/overview), [Claude Opus 4.5](https://platform.claude.com/docs/en/models/opus-4-5/overview), [Claude Sonnet 4.6](https://platform.claude.com/docs/en/models/sonnet-4-6/overview), [Claude Sonnet 4.5](https://platform.claude.com/docs/en/models/sonnet-4-5/overview).
64Legacy models (still available): [Claude Fable 5](https://platform.claude.com/docs/en/models/fable-5/overview), [Claude Opus 4.8](https://platform.claude.com/docs/en/models/opus-4-8/overview), [Claude Opus 4.7](https://platform.claude.com/docs/en/models/opus-4-7/overview), [Claude Opus 4.6](https://platform.claude.com/docs/en/models/opus-4-6/overview), [Claude Opus 4.5](https://platform.claude.com/docs/en/models/opus-4-5/overview), [Claude Sonnet 4.6](https://platform.claude.com/docs/en/models/sonnet-4-6/overview), [Claude Sonnet 4.5](https://platform.claude.com/docs/en/models/sonnet-4-5/overview).
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6666Once you've picked a model, [learn how to make your first API call](https://platform.claude.com/docs/en/get-started). To understand how model IDs, aliases, and snapshots work, see [Model IDs and versioning](https://platform.claude.com/docs/en/about-claude/models/model-ids-and-versions); for the reliable-knowledge and training-data cutoffs behind each model, see [Anthropic's Transparency Hub](https://www.anthropic.com/transparency).
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