Last refreshed 2026-06-09. Next refresh: weekly.
Why use Claude Mythos Preview on Microsoft Foundry?
Microsoft Foundry offers Claude Mythos Preview with competitive pricing. Microsoft Foundry is a unified Azure platform-as-a-service offering for enterprise AI operations, model builders, and application development.
Compare Claude Mythos Preview across 2 providers to find the best fit for your use caseSetup recipe
Docs fallbackUse the provider REST API or SDKCreate a provider API keymodel: claude-mythos-previewclaude-mythos-previewRequest example
claude-mythos-preview.Gotchas
No curated gotchas have been sourced for this exact provider/model route yet.
Compare Claude Mythos Preview Across Providers
| Provider | Input (per 1M) | Output (per 1M) |
|---|---|---|
| Anthropic | $25.00 | $125.00 |
| Microsoft Foundry | — | — |
Capabilities
About Claude Mythos Preview
Anthropic's cybersecurity-focused frontier model, offered as an invitation-only research preview under Project Glasswing. Succeeded by Claude Mythos 5 (API ID: claude-mythos-5) as of June 9, 2026. Anthropic has indicated that Claude Mythos Preview will be retired after Claude Mythos 5 becomes available; no formal retirement date was published as of 2026-06-09. For current access and the migration path, see the Anthropic migration guide.
FAQ
What is the context window for Claude Mythos Preview on Microsoft Foundry?
Claude Mythos Preview supports a 1m token context window on Microsoft Foundry.
How does Microsoft Foundry compare to other Claude Mythos Preview providers?
Claude Mythos Preview is available from 2 providers. The cheapest input pricing is $25.00/1M tokens from Anthropic.
What API model ID do I use for Claude Mythos Preview on Microsoft Foundry?
Use the model ID claude-mythos-preview when calling Microsoft Foundry's API.
Who created Claude Mythos Preview?
Claude Mythos Preview was created by Anthropic as part of the Claude Mythos model family.
Is Claude Mythos Preview open source?
Claude Mythos Preview is not open source; the seed data lists it as proprietary.