Claude Opus 4.5 — AI Model Review & Pricing
Anthropic's most capable model. Exceptional across reasoning, coding, creative writing, and nuanced instruction following.
Specifications
| Attribute | Value |
|---|---|
| Lab | Anthropic |
| Tags | Intelligent Reasoning Multimodal |
| Release Date | 2026-02 |
| Context Window | 200,000 tokens |
| Input Price / 1M | $15.00 |
| Output Price / 1M | $75.00 |
| Input Modalities | Text |
| Output Modalities | Text |
Strengths
- Best-in-class reasoning depth
- Superior coding ability
- Excellent instruction following
- Strong multilingual performance
- Nuanced creative writing
Weaknesses
- Higher latency than smaller models
- Premium pricing tier
- Rate limits on API
Best For
- Complex reasoning tasks
- Code generation & review
- Long-form content
- Research analysis
In Depth: Claude Opus 4.5
Summary
Claude Opus 4.5 is an AI model from Anthropic ranked #5 of 124 on the LMRank leaderboard.
Released 2026-02. It currently appears in the Overall category on LMRank. It supports Text input and produces Text output, with a context window of 200,000 tokens. Input pricing is $15.00 per 1M tokens and output is $75.00 per 1M tokens on OpenRouter.