Last refreshed 2026-09-01. Next refresh: weekly.
Why use Claude Fable 5.1 on Microsoft Foundry?
Microsoft Foundry offers Claude Fable 5.1 with pay-as-you-go pricing at $10.00/1M input tokens. Microsoft Foundry is a unified Azure platform-as-a-service offering for enterprise AI operations, model builders, and application development.
Compare Claude Fable 5.1 across 4 providers to find the best fit for your use caseSetup recipe
Docs fallbackUse the provider REST API or SDKCreate a provider API keymodel: claude-fable-5-1claude-fable-5-1Request example
claude-fable-5-1.Gotchas
No curated gotchas have been sourced for this exact provider/model route yet.
Compare Claude Fable 5.1 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 5.1
Anthropic's generally available Mythos-class model for demanding reasoning, long-horizon agents, and ambitious coding, released September 1, 2026. Same underlying model as Claude Mythos 5.1 with cybersecurity and biology safeguards (flagged queries route to Opus 4.8 for cyber and Opus 5 for biology; those reroutes are not billed at Fable prices). Claude API id claude-fable-5-1. List price $10 per 1M input tokens and $50 per 1M output tokens; cache reads $0.25 per 1M (0.025x base input, 75% less than Fable 5's $1.00).