# Claude Opus 5.5

Type: Product

Source: AI Intelligence Brief — https://getaibrief.com/entity/claude-opus-55
Canonical HTML page: https://getaibrief.com/entity/claude-opus-55

## Timeline

- **2026-09-22**: Anthropic launches Claude Opus 5.5 — Anthropic releases Claude Opus 5.5 at $4 per million input tokens and $20 per million output tokens, available on AWS, Google Cloud, and Microsoft Azure.
- **2026-09**: Dario Amodei calls for slower AI releases — Anthropic CEO Dario Amodei calls on the AI industry to slow the release of new capabilities to address safety concerns, Reuters reports.

## Recent coverage (1 stories)

### Anthropic Opus 5.5 beats GPT-5.6 Sol on coding at one-third the cost
2026-09-23 00:31:53 · Sentiment: Positive · Impact: 8/10 · Sources: 3

Anthropic's Claude Opus 5.5 delivers top-tier performance on software development benchmarks while costing roughly a third as much as OpenAI's GPT-5.6 Sol, according to Anthropic. External safety testing by METR and Frontier Design adds a responsible-AI layer to the release.
Full story: https://getaibrief.com/story/anthropic-claude-opus-5-5-benchmark-safety

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This page is a machine-readable summary. Sentiment measures the directional read of each development for this entity, not the tone of the reporting; impact weights consequence, not syndication reach. See https://getaibrief.com/guides/methodology for the full editorial methodology.