GPT-5.4 Mini vs o3 Mini
o3 Mini is cheaper on output tokens, while GPT-5.4 Mini offers a larger context window. Choose GPT-5.4 Mini or o3 Mini based on the trade-off between cost, context, and the benchmarks that matter for your use case.
| Spec | GPT-5.4 Mini | o3 Mini |
|---|---|---|
| Provider | OpenAI | OpenAI |
| Input / 1M tokens | $0.75 | $1.10 |
| Output / 1M tokens | $4.50 | $4.40 |
| Context window | 400K | 200K |
| Parameters | — | — |
| Open weights | No | No |
| Released | Mar 2026 | Dec 2024 |
| LiveBench score | 67.7 | — |
| LMArena (Chatbot Arena) Elo score | 1412 | 1337 |
| LMArena WebDev Elo score | 1398 | — |
| LMArena Vision Elo score | 1245 | — |
| GPQA Diamond score | 86.9 | 77.0 |
| FrontierMath score | 28.3 | 12.4 |
| Epoch Capabilities Index score | 149 | 140 |
| SWE-bench Verified score | — | 42.4 |
| Aider Polyglot score | — | 60.4 |
FAQ
Is GPT-5.4 Mini or o3 Mini cheaper?
o3 Mini is cheaper on output tokens ($4.40 vs $4.50 per 1M).
Which has the larger context window, GPT-5.4 Mini or o3 Mini?
GPT-5.4 Mini has the larger context window (400K tokens).
Pricing is indicative — confirm with the provider before production use. Highlighted values indicate the better figure for that row.