Generally available. API calls succeed; recommended for new workloads.
Retirement
2027-09-01or later
Countdown
in 292 days
Lifecycle
announced
2026-09-01
active
current
legacy
—
deprecated
—
retiring
2027-09-01
retired
2027-09-01
Details
- Canonical id
anthropic/claude-mythos-5-1- Provider
- Anthropic
- Announced
- 2026-09-01
- Deprecated
- —
- Retirement
- 2027-09-01
- Aliases
claude-mythos-5-1- Source term
- Active
- Source
- Provider page ↗
- Last verified
- 2026-11-10
Specs
- Input price
- $10.00 / 1M tokens
- Output price
- $50.00 / 1M tokens
- Context window
- 1,000K tokens
- Max output
- 128K tokens
Lifecycle history
- 2026-09-19 added as active
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Markdown
[](https://llmintel.ai/models/anthropic/claude-mythos-5-1)HTML
<a href="https://llmintel.ai/models/anthropic/claude-mythos-5-1"><img src="https://llmintel.ai/badge/anthropic/claude-mythos-5-1.svg" alt="anthropic/claude-mythos-5-1 lifecycle" /></a>