Is Claude Opus 5 still available?
Yes, as a legacy model. Anthropic's models overview lists it under legacy models that are still available, and points Opus 5 users to the migration guide for Opus 5.5.
Anthropic · Claude Opus · Legacy
Claude Opus 5
Claude Opus 5 was Anthropic's flagship Opus model from July 24, 2026 until Claude Opus 5.5 replaced it on September 22, 2026. It is now a legacy model that is still available on the API at $5 / $25 per 1M input/output tokens, with a 1M-token context window.
· today
API price per 1M tokens
$5 in / $25 out
Context window
1M tokens
Claude Opus 5 specs
| Released | Jul 24, 2026 |
|---|---|
| Status | Legacy |
| API model ID | claude-opus-5 |
| API price (in / out) | $5 / $25 per 1M tokens |
| Cache read | $0.50 per 1M tokens |
| Context window | 1M tokens |
| Platforms | Claude API, Amazon Bedrock, Claude Platform on AWS, Google Cloud, Microsoft Foundry |
| Replaced by | Claude Opus 5.5 |
Where you can use Claude Opus 5
- Listed under legacy models (still available) in Anthropic's models overview.
Claude Opus 5 FAQ
How much does Claude Opus 5 cost?
$5 per 1M input tokens and $25 per 1M output tokens, with cache reads at $0.50. Opus 5.5 costs $4 / $20.
What is the Claude Opus 5 context window?
1M tokens, both the default and the maximum, with 128k max output tokens.
Other Anthropic models
Sources
- Claude Developer Platform release notesread 2026-09-24
- Claude API pricingread 2026-09-24
- Claude models overviewread 2026-09-24