Last refreshed 2026-06-09. Next refresh: weekly.
Why use Claude Fable 5 on Anthropic?
Anthropic offers Claude Fable 5 with pay-as-you-go pricing at $10.00/1M input tokens. Anthropic is a safety-focused AI research company and creator of the Claude model family, offering API access through the Anthropic Console for text generation, analysis, and coding tasks.
Compare Claude Fable 5 across 4 providers to find the best fit for your use caseSetup recipe
Python + curlpip install anthropicexport ANTHROPIC_API_KEY=...import anthropic
client = anthropic.Anthropic() # reads ANTHROPIC_API_KEY from env
message = client.messages.create(
model="claude-fable-5",claude-fable-5Request example
import anthropic
client = anthropic.Anthropic() # reads ANTHROPIC_API_KEY from env
message = client.messages.create(
model="claude-fable-5",
max_tokens=1024,
messages=[{"role": "user", "content": "Hello"}]
)
print(message.content[0].text)Gotchas
- Use the versioned model ID, e.g. "claude-sonnet-4-6" or "claude-opus-4-7-20251101".
- The examples expect ANTHROPIC_API_KEY; rename it only if your application config maps the new variable.
Compare Claude Fable 5 Across Providers
| Provider | Input (per 1M) | Output (per 1M) |
|---|---|---|
| Anthropic | $10.00 | $50.00 |
| AWS Bedrock | $10.00 | $50.00 |
| GCP Vertex AI | $10.00 | $50.00 |
| Microsoft Foundry | $10.00 | $50.00 |
Pricing
| Type | Price (per 1M) |
|---|---|
| Input tokens | $10.00 |
| Output tokens | $50.00 |
Capabilities
About Claude Fable 5
Anthropic's most capable widely released model, built for demanding reasoning and long-horizon agentic work. Claude Fable 5 is the generally available Mythos-class Claude model, supports vision, tool use, structured outputs, prompt caching, Batch API processing, adaptive thinking that is always on, a 1M-token context window, and up to 128k output tokens. It is available through the Claude API, AWS Bedrock, Vertex AI, and Microsoft Foundry as of June 9, 2026, with first-party pricing at $10 per 1M input tokens and $50 per 1M output tokens.
FAQ
What does Claude Fable 5 cost on Anthropic?
On Anthropic, Claude Fable 5 costs $10.00 per 1M input tokens and $50.00 per 1M output tokens.
What is the context window for Claude Fable 5 on Anthropic?
Claude Fable 5 supports a 1m token context window on Anthropic.
How does Anthropic compare to other Claude Fable 5 providers?
Claude Fable 5 is available from 4 providers. The cheapest input pricing is $10.00/1M tokens from Anthropic.
What API model ID do I use for Claude Fable 5 on Anthropic?
Use the model ID claude-fable-5 when calling Anthropic's API.
Who created Claude Fable 5?
Claude Fable 5 was created by Anthropic as part of the Claude Fable model family.
Is Claude Fable 5 open source?
Claude Fable 5 is not open source; the seed data lists it as proprietary.