Claude Opus 4.5
Anthropic
November 2025 Opus release that dramatically cut flagship pricing (from $15/$75 to $5/$25) while improving agentic coding and reasoning. Superseded by Opus 4.6 and 4.7.
Strengths
- Cut Opus pricing 3x (to $5/$25) while improving capability
- Strong agentic coding and complex reasoning
- Extended thinking with 64K max output
Caveats
- Superseded by Opus 4.6 (1M context) and Opus 4.7
- 200K context trails the 1M of Opus 4.6/4.7
- Vendor
- Anthropic
- Context Window
- 200,000 tokens
- Max Output
- 64,000 tokens
- License
- Proprietary
- Release Date
- 2025-11-24
- Training Cutoff
- 2025-08-31
- Modalities
- textimage
Capabilities
Vision
Audio
Video
Tool Use
Resources
Pricing
$5 per 1M input tokens, $25 per 1M output tokens (a major drop from Opus 4.1's $15/$75). Prompt caching and Batch API (50% off) available.