Claude Opus 5.5 vs GPT-Image-2.5 (Sunburst)
A direct, empirical evaluation of Claude Opus 5.5 (Anthropic) against GPT-Image-2.5 (Sunburst) (OpenAI).
Claude Opus 5.5
Developed by Anthropic · Proprietary Frontier Reasoner parameters
Autonomous enterprise codebase migrations, GitHub Copilot multi-file edits, SWE-bench Pro issue resolution (89.9%), and CodeRabbit automated reviews.
GPT-Image-2.5 (Sunburst)
Developed by OpenAI · Proprietary Multimodal DiT parameters
High-fidelity typographic rendering, raytracing reflection accuracy, sketch-to-image conditioning, and localized comment inpainting.
| Metric | Claude Opus 5.5 | GPT-Image-2.5 (Sunburst) |
|---|---|---|
| SWE-bench Verified | 89.9% | 62.4% |
| MMLU-Pro | 92.4% | 89.5% |
| MATH-500 | 97.2% | 91.2% |
| Context Window | 500,000 tokens | Spatial Vector Token Canvas (1792×1024) |
| Input Pricing (per 1M) | $4.00 | $2.50 |
| Output Pricing (per 1M) | $20.00 | $10.00 |