Claude Opus 4.5
ClaudeBalanced
ThinkingTool UseVisionStructured Output
About this model
Claude Opus 4.5 is Anthropic’s frontier reasoning model optimized for complex software engineering, agentic workflows, and long-horizon computer use. It offers strong multimodal capabilities, competitive performance across real-world coding and...
Performance Tier
Balanced
Claude Opus 4.5 is a balanced model from Claude : strong performance at a reasonable price.
Strong cost-performance ratio. Reliable for most professional use cases without premium pricing.
Pricing
This model is included in Elosia plansPremium
Highest cost level. A long conversation can quickly consume your monthly cap.
| Type | per 1M tokens |
|---|---|
| Input (prompt) | $5.00 |
| Output (completion) | $25.00 |
| Cache read | $0.500 |
| Cache write | $6.25 |
Capabilities
Context Length200K
Max Output Tokens64K
TokenizerClaude
Inputfile, image, text
Outputtext
Release DateNovember 24, 2025
Benchmarks
General Intelligence
MMLU
89.5%
GPQA Diamond
83.3%
Mathematics
MATH-500
83.6%
Programming
HumanEval
91%
SWE-bench Verified
72%
Recommended Use Cases
CodingAnalysisResearchCreative Writing
Strengths
- Top-tier reasoning and knowledge understanding
- Excellent at complex multi-step agentic tasks
- Strong graduate-level science reasoning (GPQA 83.3%)
- Reliable instruction following with high accuracy
Limitations
- Premium pricing — most expensive Claude model after Opus 4.6
- Slower than Sonnet for simple queries
Resources
This model may use your data for training