---
title: Models overview
url: https://platform.claude.com/docs/en/about-claude/models/overview
description: Claude is a family of state-of-the-art large language models developed by Anthropic. This guide introduces the available models and compares their performance.
---
## Choosing a model
If you're unsure which model to use, start with **Claude Opus 5** for complex agentic coding and enterprise work. For workloads that need the highest available capability, use [Claude Fable 5](https://platform.claude.com/docs/en/about-claude/models/overview#claude-fable-5-and-claude-mythos-5).
All current Claude models support text and image input, text output, multilingual capabilities, and vision. Models are available through the Claude API, [Amazon Bedrock](https://platform.claude.com/docs/en/build-with-claude/claude-in-amazon-bedrock), [Claude Platform on AWS](https://platform.claude.com/docs/en/build-with-claude/claude-platform-on-aws), [Google Cloud](https://platform.claude.com/docs/en/build-with-claude/claude-on-vertex-ai), and [Microsoft Foundry](https://platform.claude.com/docs/en/build-with-claude/claude-in-microsoft-foundry).
Once you've picked a model, [learn how to make your first API call](https://platform.claude.com/docs/en/get-started).
### Claude Fable 5 and Claude Mythos 5
Claude Fable 5 (`claude-fable-5`) is Anthropic's most capable widely released model. Claude Mythos 5 (`claude-mythos-5`) shares Claude Fable 5's specs and pricing and joins the invitation-only Claude Mythos Preview (`claude-mythos-preview`) within [Project Glasswing](https://anthropic.com/glasswing). See [Introducing Claude Fable 5 and Claude Mythos 5](https://platform.claude.com/docs/en/about-claude/models/introducing-claude-fable-5-and-claude-mythos-5) for launch details and API changes.
Claude Fable 5 is generally available on the Claude API, Amazon Bedrock, Claude Platform on AWS, Google Cloud, and Microsoft Foundry beginning June 9, 2026. Claude Mythos 5 is not generally available: it is offered in limited availability to approved customers in [Project Glasswing](https://anthropic.com/glasswing), beginning the same day. For access, contact your Anthropic, AWS, or Google Cloud account team.
### Latest models comparison
| Feature | Claude Fable 5 | Claude Opus 5 | Claude Sonnet 5 | Claude Haiku 4.5 |
| ----------------------------------------------------------------------------------------------------------------------------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------ | ------------------------------------------------------------------------------------ | -------------------------------------------------------------------------------------- |
| **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 |
| **Claude API ID** | claude-fable-5 | claude-opus-5 | claude-sonnet-5 | claude-haiku-4-5-20251001 |
| **Claude API alias** | claude-fable-5 | claude-opus-5 | claude-sonnet-5 | claude-haiku-4-5 |
| **AWS Bedrock ID** | anthropic.claude-fable-53 | anthropic.claude-opus-53 | anthropic.claude-sonnet-53 | anthropic.claude-haiku-4-5-20251001-v1:0 |
| **Google Cloud ID** | claude-fable-5 | claude-opus-5 | claude-sonnet-5 | claude-haiku-4-5\@20251001 |
| **Pricing**1 | $10 / input MTok $50 / output MTok | $5 / input MTok $25 / output MTok | $2 / input MTok $10 / output MTok | $1 / input MTok $5 / output MTok |
| **[Extended thinking (`thinking.type: "enabled"`)](https://platform.claude.com/docs/en/build-with-claude/extended-thinking)** | No | No | No | Yes |
| **[Adaptive thinking](https://platform.claude.com/docs/en/build-with-claude/thinking)** | Yes (always on) | Yes | Yes | No |
| **Comparative latency** | Slower | Moderate | Fast | Fastest |
| **Context window** | 1M tokens | 1M tokens | 1M tokens | 200k tokens |
| **Max output** | 128k tokens | 128k tokens | 128k tokens | 64k tokens |
| **Reliable knowledge cutoff** | Jan 20262 | May 20262 | Jan 20262 | Feb 2025 |
| **Training data cutoff** | Jan 2026 | May 2026 | Jan 2026 | Jul 2025 |
*1 See [Pricing](https://platform.claude.com/docs/en/about-claude/pricing) for complete pricing information including Batch API discounts and prompt caching rates.*
*2 **Reliable knowledge cutoff** indicates the date through which a model's knowledge is most extensive and reliable. **Training data cutoff** is the broader date range of training data used. For more information, see [Anthropic's Transparency Hub](https://www.anthropic.com/transparency).*
*3 Claude Fable 5, Claude Opus 5, and Claude Sonnet 5 are available on Bedrock through [Claude in Amazon Bedrock](https://platform.claude.com/docs/en/build-with-claude/claude-in-amazon-bedrock) (the Messages-API Bedrock endpoint).*
Claude Mythos 5 and Claude Mythos Preview are offered separately for defensive cybersecurity workflows as part of [Project Glasswing](https://anthropic.com/glasswing). Access is invitation-only and there is no self-serve sign-up.
Every Claude model ID is a pinned snapshot. Models with a date in the ID (for example,
`20250929`
) are fixed to that specific release. Starting with the Claude 4.6 generation, model IDs use a dateless format that is also a pinned snapshot, not an evergreen pointer. For models before the 4.6 generation, entries in the Claude API alias column are convenience pointers that resolve to a dated model ID. For details on the naming convention and how versioning works, see
[Model IDs and versioning](https://platform.claude.com/docs/en/about-claude/models/model-ids-and-versions)
.
Starting with
**Claude Sonnet 4.5 and all subsequent models**
(including Claude Sonnet 4.6), Bedrock offers two endpoint types:
**global endpoints**
(dynamic routing for maximum availability) and
**regional endpoints**
(guaranteed data routing through specific geographic regions). Google Cloud offers three endpoint types: global endpoints,
**multi-region endpoints**
(dynamic routing within a geographic area), and regional endpoints. For more information, see
[Cloud platform pricing](https://platform.claude.com/docs/en/about-claude/pricing#cloud-platform-pricing)
.
**Claude Platform on AWS**
uses the same model IDs as the Claude API (for example,
`claude-opus-4-6`
), not Bedrock-style IDs. Model lifecycle on Claude Platform on AWS follows Anthropic's first-party
[Model deprecations](https://platform.claude.com/docs/en/about-claude/model-deprecations)
, not Bedrock's. See
[Available models](https://platform.claude.com/docs/en/build-with-claude/claude-platform-on-aws#available-models)
for the model list.
You can query model capabilities and token limits programmatically with the [Models API](https://platform.claude.com/docs/en/api/models/list). The response includes `max_input_tokens`, `max_tokens`, and a `capabilities` object for every available model.
On Claude Opus 4.8, the `effort` parameter defaults to `high` on all surfaces, including the Claude API, Claude Code, and claude.ai. On Claude Opus 5 and Claude Sonnet 5, it defaults to `high` on the Claude API and Claude Code. Set `effort` explicitly to use a different level. See [Effort](https://platform.claude.com/docs/en/build-with-claude/effort) for guidance on choosing a level.
The Max output values in the table apply to the synchronous Messages API. On the [Message Batches API](https://platform.claude.com/docs/en/build-with-claude/batch-processing#extended-output-beta), Claude Opus 5, Opus 4.8, Opus 4.7, Opus 4.6, Sonnet 5, and Sonnet 4.6 support up to 300k output tokens by using the `output-300k-2026-03-24` beta header.
The following models are still available. Consider migrating to current models for improved performance:
| Feature | Claude Opus 4.8 | Claude Opus 4.7 | Claude Opus 4.6 | Claude Sonnet 4.6 | Claude Sonnet 4.5 | Claude Opus 4.5 |
| ----------------------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------ | -------------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------ | ------------------------------------------------------------------------------------ | -------------------------------------------------------------------------------------- | -------------------------------------------------------------------------------------- |
| **Claude API ID** | claude-opus-4-8 | claude-opus-4-7 | claude-opus-4-6 | claude-sonnet-4-6 | claude-sonnet-4-5-20250929 | claude-opus-4-5-20251101 |
| **Claude API alias** | claude-opus-4-8 | claude-opus-4-7 | claude-opus-4-6 | claude-sonnet-4-6 | claude-sonnet-4-5 | claude-opus-4-5 |
| **AWS Bedrock ID** | anthropic.claude-opus-4-86 | anthropic.claude-opus-4-76 | anthropic.claude-opus-4-6-v1 | anthropic.claude-sonnet-4-6 | anthropic.claude-sonnet-4-5-20250929-v1:0 | anthropic.claude-opus-4-5-20251101-v1:0 |
| **Google Cloud ID** | claude-opus-4-8 | claude-opus-4-7 | claude-opus-4-6 | claude-sonnet-4-6 | claude-sonnet-4-5\@20250929 | claude-opus-4-5\@20251101 |
| **Pricing** | $5 / input MTok $25 / output MTok | $5 / input MTok $25 / output MTok | $5 / input MTok $25 / output MTok | $3 / input MTok $15 / output MTok | $3 / input MTok $15 / output MTok | $5 / input MTok $25 / output MTok |
| **[Extended thinking (`thinking.type: "enabled"`)](https://platform.claude.com/docs/en/build-with-claude/extended-thinking)** | No | No | Yes (deprecated) | Yes (deprecated) | Yes | Yes |
| **[Adaptive thinking](https://platform.claude.com/docs/en/build-with-claude/thinking)** | Yes | Yes | Yes | Yes | No | No |
| **Comparative latency** | Moderate | Moderate | Moderate | Fast | Fast | Moderate |
| **Context window** | 1M tokens | 1M tokens | 1M tokens | 1M tokens | 200k tokens | 200k tokens |
| **Max output** | 128k tokens | 128k tokens | 128k tokens | 128k tokens | 64k tokens | 64k tokens |
| **Reliable knowledge cutoff** | Jan 20265 | Jan 20265 | May 20255 | Aug 20255 | Jan 20255 | May 20255 |
| **Training data cutoff** | Jan 2026 | Jan 2026 | Aug 2025 | Jan 2026 | Jul 2025 | Aug 2025 |
*5 **Reliable knowledge cutoff** indicates the date through which a model's knowledge is most extensive and reliable. **Training data cutoff** is the broader date range of training data used.*
*6 Claude Opus 4.8 and Claude Opus 4.7 are available on Bedrock through [Claude in Amazon Bedrock](https://platform.claude.com/docs/en/build-with-claude/claude-in-amazon-bedrock) (the Messages-API Bedrock endpoint).*
## Prompt and output performance
Current Claude models excel in:
* **Performance:** Top-tier results in reasoning, coding, multilingual tasks, long-context handling, honesty, and image processing. See [Prompting best practices](https://platform.claude.com/docs/en/build-with-claude/prompt-engineering/claude-prompting-best-practices) for general and model-specific prompting guidance.
* **Engaging responses:** Claude models are ideal for applications that require rich, human-like interactions.
* If you prefer more concise responses, you can adjust your prompts to guide the model toward the desired output length. Refer to the [prompt engineering guides](https://platform.claude.com/docs/en/build-with-claude/prompt-engineering) for details.
* For prompting best practices, see [Prompting best practices](https://platform.claude.com/docs/en/build-with-claude/prompt-engineering/claude-prompting-best-practices).
* **Output quality:** When migrating from a previous model generation, you may notice larger improvements in overall performance.
## Migrating to Claude Opus 5
If you're currently using Claude Opus 4.8 or earlier Claude models, see [Migrating to Claude Opus 5](https://platform.claude.com/docs/en/about-claude/models/migration-guide#migrating-from-claude-opus-4-8-to-claude-opus-5).
## Get started with Claude
If you're ready to start exploring what Claude can do for you, dive in! Whether you're a developer looking to integrate Claude into your applications or a user wanting to experience the power of AI firsthand, the following resources can help.
Looking to chat with Claude? Visit
[claude.ai](https://claude.ai)
!
Explore Claude's capabilities and development flow.
Learn how to make your first API call in minutes.
Craft and test powerful prompts directly in your browser.
If you have any questions or need assistance, don't hesitate to reach out to the [support team](https://support.claude.com/) or consult the [Discord community](https://www.anthropic.com/discord).