# Claude Fable 5.2: what's new, price and who gets it

Anthropic released Claude Fable 5.2 and Mythos 5.2 on November 9, 2026. Here is what changed, what it costs and which one you can actually use.

URL: https://aitoolsthisweek.com/claude-fable-5-2
Published: 2026-11-11T03:27:09.183Z
Updated: 2026-11-11T03:27:40.939Z

Claude Fable 5.2 is Anthropic's newest top model, released on November 9, 2026 together with Claude Mythos 5.2. Fable 5.2 is the one you can use: Anthropic says it is available to all users on every platform, while Mythos 5.2 stays limited to vetted organizations.

## What is new in Fable 5.2

Anthropic describes 5.2 as an upgrade to coding, reasoning and vision rather than a brand-new model. The practical changes are:

- **Speed.** Responses come out up to 30% faster than Fable 5.1.
- **Fast mode.** An optional setting that generates text up to 2.5x faster, at twice the price.
- **Lower prices** than 5.1 on the API.
- **Fewer blocked answers.** Anthropic says the safety filters now stop about 55% fewer requests than in Fable 5.1 (about 60% fewer in cybersecurity and 40% fewer in biology). That matters if 5.1 refused harmless questions from you.

## Fable vs Mythos: which one is yours

| | Claude Fable 5.2 | Claude Mythos 5.2 |
|---|---|---|
| Who can use it | All users, on all platforms | Vetted organizations only |
| Underlying model | Same | Same |
| Cyber and biology safeguards | Yes | No |
| How to get access | Just pick it in Claude | Apply to the Cyber or Life Sciences Verification Program, or use Claude Security on an Enterprise plan |

When Fable gets a sensitive cybersecurity or biology question, it does not simply refuse. Anthropic reroutes the request to an older model: Opus 4.8 for cybersecurity and Opus 5 for biology.

## Price and limits

On the API, Fable 5.2 costs **$8 per million input tokens and $40 per million output tokens**. Fast mode is $16 and $80. The model ID is `claude-fable-5-2`. It is also offered through Amazon Web Services, Google Cloud and Microsoft Azure.

Inside the Claude apps, Fable counts against your plan's weekly usage. On Pro plans and standard Team seats it can take up to 50% of the weekly limit. For the launch, Anthropic is also giving eligible paid subscribers extra Fable usage: one to three resets, depending on how long you have subscribed.

Fast mode is available in Claude Code, the Claude Platform, Google Cloud and Microsoft Foundry.

## How good is it

Anthropic's own tests put Fable 5.2 ahead of Opus 5.5 across the board. A few of the published numbers:

- Agentic coding (FrontierSWE v2): 69.9% vs 62.3%
- Computer use (OSWorld 2.1): 89.3% vs 87.2%
- Remote Labor Index, a test of real freelance-style jobs: 41.3% vs 21.3%

These are the company's figures, so treat them as a guide until independent tests arrive.

## What it means for you

If you already pay for Claude, you get a faster top model with fewer needless refusals, and nothing to set up. If you are on the free plan or just curious, start with our list of [free AI tools](/free-ai-tools) and our plain-words guide to [what an AI agent does](/what-is-an-ai-agent), since long, multi-step agent work is what this model is built for. Google answered a day later with its own top model: see [Gemini 4 Carbon](/gemini-4-carbon).

*AI Tools This Week is not affiliated with Anthropic.*

## Frequently asked questions

### Is Claude Fable 5.2 free?

Anthropic says Fable 5.2 is available to all users on all platforms, but it does not spell out free-plan limits in the announcement. On paid plans, Fable can use up to 50% of the weekly limit on Pro and standard Team seats.

### What is the difference between Claude Fable and Claude Mythos?

They are the same underlying model. Fable adds safeguards for cybersecurity and biology questions so it can be offered to everyone. Mythos runs without those safeguards and is limited to vetted organizations.

### How much does Claude Fable 5.2 cost on the API?

$8 per million input tokens and $40 per million output tokens. Fast mode costs $16 and $80.

## Sources

- [Claude Fable 5.2 and Mythos 5.2 (Anthropic)](https://www.anthropic.com/claude-fable-and-mythos-5-2)