Claude Opus 4.5 vs GPT-5 Image Mini
How do these models stack up? Below is an expert side-by-side comparison of specifications, context window capacity, live pricing per million tokens, and standardized benchmark scores for Claude Opus 4.5 and GPT-5 Image Mini.
Claude Opus 4.5
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...
GPT-5 Image Mini
GPT-5 Image Mini combines OpenAI's advanced language capabilities, powered by [GPT-5 Mini](https://openrouter.ai/openai/gpt-5-mini), with GPT Image 1 Mini for efficient image generation. This natively multimodal model features superior instruction following, text...
Technical Specifications
| Specification | Claude Opus 4.5 | GPT-5 Image Mini |
|---|---|---|
| Provider | Anthropic | OpenAI |
| Context Window | 200,000 tokens | 400,000 tokens |
| Agent Suitability | 93/100 | N/A |
| Time to First Token (TTFT) | 550 ms | N/A |
| Deployment Model | managed api | managed api |
| Production Stability | stable | stable |
| API Available | Yes | Yes |
| Released Date | 2025-11-24 | 2025-10-16 |
API Pricing Comparison
Input Price per Million Tokens
Claude Opus 4.5
$5.00
GPT-5 Image Mini
$2.50
Output Price per Million Tokens
Claude Opus 4.5
$25.00
GPT-5 Image Mini
$2.00
Want to test both models live?
Run side-by-side prompt prompts in our dynamic Sandbox. Check execution speeds, latency metrics, and compute actual costs in real-time.
Benchmark Performance Metrics
Scores show the raw performance percentages verified across key evaluation suites. Higher bars indicate superior accuracy and capability in that domain.
Claude Opus 4.5 Quirks & Gotchas
- ▸Deep analytical reasoning — best for structured problem-solving
- ▸200K context is limiting compared to 1M of Opus 4.6+ — upgrade for long-document tasks
GPT-5 Image Mini Quirks & Gotchas
No developer gotchas reported.