Compare models
Pick up to 4 models for a side-by-side spec sheet. Hover any dotted metric name for what the test measures. Best value in each row is highlighted.
Claude Haiku 4.5GPT-5.3-Codex
| Claude Haiku 4.5 Anthropic | GPT-5.3-Codex OpenAI | |
|---|---|---|
| Pricing | ||
| Input $/1M | $1.00 | $1.75 |
| Output $/1M | $5.00 | $14.00 |
| Blended $/1M (3:1) | $2.00 | $4.81 |
| Cache read $/1M | $0.10 | $0.175 |
| Cache write $/1M | $1.25 | — |
| Quality indices | ||
| Intelligence Index | 29.6 | 44.3 |
| Coding Index | 43.9 | — |
| Math Index | — | — |
| Agentic Index | 16.4 | — |
| Speed & latency | ||
| Output speed (tok/s) | — | 126 |
| Time to first token | — | 51.38s |
| Time to first answer token | — | 51.38s |
| Benchmarks (Artificial Analysis) | ||
| GPQA Diamond | — | 91.5% |
| Humanity's Last Exam | — | 39.9% |
| SciCode | — | 53.2% |
| IFBench | — | 75.4% |
| AA-LCR (Long Context Reasoning) | — | 74.0% |
| Terminal-Bench Hard | — | 53.0% |
| τ²-Bench (Telecom) | — | 86.0% |
| Design Arena (Elo) | ||
| Website | 1,149 | 1,190 |
| Web apps | — | 1,103 |
| Full-stack | — | 1,041 |
| Mobile apps | — | 1,127 |
| Android native | — | 1,084 |
| UI components | 1,142 | 1,179 |
| Data viz | 1,160 | 1,199 |
| SVG | 1,072 | 1,176 |
| 3D | 1,131 | 1,067 |
| Game dev | 1,155 | 1,219 |
| Godot game dev | — | 1,124 |
| Code categories | 1,148 | 1,178 |
| ASCII art | 1,182 | 1,193 |
| Specs | ||
| Context window | 200K | 400K |
| Max output tokens | 64K | 128K |
| Input modalities | text, image, file | text, image, file |
| Tokenizer | Claude | GPT |