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 | 16.9 | 32.5 |
| Coding Index | 43.9 | — |
| Math Index | — | — |
| Agentic Index | 8 | — |
| Speed & latency | ||
| Output speed (tok/s) | — | 154 |
| Time to first token | — | 36.11s |
| Time to first answer token | — | 36.11s |
| Benchmarks (Artificial Analysis) | ||
| GPQA Diamond | — | 91.5% |
| Humanity's Last Exam | — | 42.5% |
| IFBench | — | 75.4% |
| AA-LCR (Long Context Reasoning) | — | 83.3% |
| Terminal-Bench Hard | — | 53.0% |
| τ²-Bench (Telecom) | — | 86.0% |
| Design Arena (Elo) | ||
| Website | 1,135 | 1,175 |
| Web apps | — | 1,048 |
| Full-stack | — | 993 |
| Mobile apps | — | 1,083 |
| Android native | — | 1,084 |
| UI components | 1,115 | 1,153 |
| Data viz | 1,139 | 1,179 |
| SVG | 1,049 | 1,152 |
| 3D | 1,101 | 1,037 |
| Game dev | 1,120 | 1,185 |
| Godot game dev | — | 1,124 |
| Code categories | 1,130 | 1,160 |
| ASCII art | 1,159 | 1,170 |
| Specs | ||
| Context window | 200K | 400K |
| Max output tokens | 64K | 128K |
| Input modalities | text, image, file | text, image, file |
| Tokenizer | Claude | GPT |