## Explore the latest generation of Claude models
The whole hunk
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44description: Claude is a highly performant, trustworthy, and intelligent AI platform built by Anthropic. Claude excels at tasks involving language, reasoning, analysis, coding, and more.
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7<Tip>
8 The latest generation of Claude models:
9
10 **Claude Fable 5.1** - For demanding reasoning and long-horizon agentic work. Read the [Claude Fable 5.1 announcement](https://www.anthropic.com/claude-fable-and-mythos-5-1).
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12 **Claude Mythos 5.1** - Offers Claude Fable 5.1's capabilities by invitation through [Project Glasswing](https://anthropic.com/glasswing).
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14 **Claude Opus 5** - For complex agentic coding and enterprise work. Read the [Claude Opus 5 announcement](https://www.anthropic.com/news/claude-opus-5).
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16 **Claude Sonnet 5** - Frontier intelligence at scale, built for coding, agents, and enterprise workflows. Read the [Claude Sonnet 5 announcement](https://www.anthropic.com/news/claude-sonnet-5).
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18 **Claude Haiku 4.5** - Fastest model with near-frontier intelligence. Read the [Claude Haiku 4.5 announcement](https://www.anthropic.com/news/claude-haiku-4-5).
19</Tip>
20
217<Note>
228 Looking to chat with Claude? Visit [claude.ai](https://claude.ai).
239</Note>
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3016| **Best for** | Custom agent loops and fine-grained control | Long-running tasks and asynchronous work |
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3218To learn more about each, see [Using the Messages API](https://platform.claude.com/docs/en/build-with-claude/working-with-messages) and the [Claude Managed Agents overview](https://platform.claude.com/docs/en/managed-agents/overview).
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20## Explore the latest generation of Claude models
21
22If 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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24* [Claude Fable 5.1](https://platform.claude.com/docs/en/models/fable-5-1/overview) (`claude-fable-5-1`) — New — *For demanding reasoning and long-horizon agentic work* — Most capable · Research · Multi-day tasks
25* [Claude Opus 5](https://platform.claude.com/docs/en/models/opus-5/overview) (`claude-opus-5`) — *For complex agentic coding and enterprise work* — Complex projects · Agents · Coding
26* [Claude Sonnet 5](https://platform.claude.com/docs/en/models/sonnet-5/overview) (`claude-sonnet-5`) — *The best combination of speed and intelligence* — Everyday tasks · Writing · Cost-efficient
27* [Claude Haiku 4.5](https://platform.claude.com/docs/en/models/haiku-4-5/overview) (`claude-haiku-4-5`) — *The fastest model with near-frontier intelligence* — Fastest · Lowest cost · High volume
28
29[Compare models](https://platform.claude.com/docs/en/models/overview)
30
31***
3332
3433## Recommended path for new developers
3534