Claude Opus 5
Anthropic
Anthropic's model for complex agentic coding and enterprise work, released July 2026. Opus 5 comes close to the frontier intelligence of Claude Fable 5 at half the price, and delivers substantially improved performance at the same $5/$25 pricing as its predecessor Opus 4.8. It has a 1M-token context window, 128K max output, and adaptive thinking with a five-level effort setting.
Strengths
- Comes close to Claude Fable 5's frontier intelligence at half the price
- State of the art on coding and knowledge-work evaluations including Frontier-Bench and GDPval-AA
- More than doubles Opus 4.8's Frontier-Bench v0.1 performance at a lower cost per task
- 1M-token context window with 128K max output (300K via the Batch API beta header)
- Adaptive thinking with a five-level effort setting
- Available on the Claude API, Amazon Bedrock, Google Cloud, and Microsoft Foundry
Caveats
- Proprietary - no open weights
- Remains behind Claude Mythos 5 on cybersecurity tasks
- Text and vision input only - no audio
- Anthropic publishes its benchmark results as charts rather than exact figures, so no scores are recorded here
- Vendor
- Anthropic
- Context Window
- 1,000,000 tokens
- Max Output
- 128,000 tokens
- License
- Proprietary
- Release Date
- 2026-07-24
- Training Cutoff
- 2026-05-01
- Modalities
- textimage
Capabilities
Vision
Audio
Video
Tool Use
Resources
Pricing
$5 per 1M input tokens, $25 per 1M output tokens - the same as Opus 4.8. Up to 90% savings with prompt caching and 50% with batch processing. Fast mode runs 2.5x faster at 2x base cost.