Claude API usage
$10/M input · $50/M output tokens
USD token-based billing; subscription products have separate terms
- Included scope
- Fable 5.1 input, output and cache-read usage
Claude Fable 5.1
● Identity checkedAI coding and reasoning models · Official-source review 2026-10-09
Claude Fable 5.1 is Anthropic’s model for coding and knowledge work, introduced alongside the more selectively available Mythos 5.1. The official announcement documents API availability and changes to cached-context pricing.
- Category
- AI coding and reasoning models
- Free access
- Not confirmed: an ongoing free plan and recurring allowance were not established in the reviewed evidence.
- API access
- Claude Fable 5.1 is documented on the Claude API using the model identifier claude-fable-5-1, and through AWS, Google Cloud and Microsoft Azure.
Is Claude Fable 5.1 right for you?
A good fit for
Relevant to developers evaluating a model for complex coding or document workflows.
Before you choose
API pricing is $10 per million input tokens, $50 per million output tokens and $0.25 per million cache-read tokens. Mythos access is separate and restricted to vetted organizations; it is not a general Fable entitlement. Provider benchmark claims were not independently reproduced.
Workflow and handoff
Check current provider availability, evaluate representative tasks and measure input, output and cache costs. Review generated code and claims before integrating the model into production.
Pricing and practical limits
API pricing is $10 per million input tokens, $50 per million output tokens and $0.25 per million cache-read tokens. Mythos access is separate and restricted to vetted organizations; it is not a general Fable entitlement. Provider benchmark claims were not independently reproduced.
Review method
Official product evidence reviewed on 2026-10-09; product artwork inspected visually. No hands-on vendor application test was performed. Application performance, security claims and plan enforcement were not independently tested.
What it can do
Features & capabilities
Unknown is different from unavailable. Each fact carries its own evidence.
| Capability | Value | Evidence | Checked |
|---|---|---|---|
| Product workflow | Claude Fable 5.1 is Anthropic’s model for coding and knowledge work, introduced alongside the more selectively available Mythos 5.1. The official announcement documents API availability and changes to cached-context pricing. | Facts sourced | 2026-10-09 |
| Pricing and restrictions | API pricing is $10 per million input tokens, $50 per million output tokens and $0.25 per million cache-read tokens. Mythos access is separate and restricted to vetted organizations; it is not a general Fable entitlement. Provider benchmark claims were not independently reproduced. | Facts sourced | 2026-10-09 |
Understand the total cost
Claude Fable 5.1 pricing & plans
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Explore toolThe practical questions
Frequently asked questions
Was the application hands-on tested?
No. This listing is based on dated official-source evidence and a visual artwork check. Unconfirmed costs and restrictions are identified explicitly.
What is Claude Fable 5.1 used for?
Claude Fable 5.1 is Anthropic’s model for coding and knowledge work, introduced alongside the more selectively available Mythos 5.1. The official announcement documents API availability and changes to cached-context pricing.
Does Claude Fable 5.1 have a free plan?
Not confirmed: an ongoing free plan and recurring allowance were not established in the reviewed evidence.. This record does not confirm an ongoing free plan.
How much does Claude Fable 5.1 cost?
$10/M input · $50/M output tokens. See the billing terms below. See the plan cards for entitlements, billing commitments and seat minimums.
Can I use Claude Fable 5.1 through an API?
Claude Fable 5.1 is documented on the Claude API using the model identifier claude-fable-5-1, and through AWS, Google Cloud and Microsoft Azure.. API access and subscription access may have different terms; consult the linked sources.
What should I check before choosing it?
API pricing is $10 per million input tokens, $50 per million output tokens and $0.25 per million cache-read tokens. Mythos access is separate and restricted to vetted organizations; it is not a general Fable entitlement. Provider benchmark claims were not independently reproduced.
Price history
No retained pricing changes yet. A current price alone does not establish a historical trend.
How this profile is supported
Official product information
Current official product source read individually; product artwork inspected visually.
Read original source ↗Pricing review
Official product page reviewed for disclosed costs; unverified prices and allowances are identified in the listing.
Read original source ↗Facts apply to the named version and check date. Send a sourced correction if something changed.