GPT-5.4 Mini vs GPT-6.1 Terra
GPT-5.4 Mini is cheaper on output tokens, while GPT-6.1 Terra offers a larger context window. Choose GPT-5.4 Mini or GPT-6.1 Terra based on the trade-off between cost, context, and the benchmarks that matter for your use case.
| Spec | GPT-5.4 Mini | GPT-6.1 Terra |
|---|---|---|
| Provider | OpenAI | OpenAI |
| Input / 1M tokens | $0.75 | $1.00 |
| Output / 1M tokens | $4.50 | $5.00 |
| Context window | 400K | 1.1M |
| Parameters | — | — |
| Open weights | No | — |
| Released | Mar 2026 | — |
| LiveBench score | 67.7 | — |
| GPQA Diamond score | 86.9 | — |
| FrontierMath score | 28.3 | — |
| Epoch Capabilities Index score | 149 | — |
| LMArena (Chatbot Arena) Elo score | 1412 | — |
| LMArena WebDev Elo score | 1397 | — |
| LMArena Vision Elo score | 1245 | — |
FAQ
Is GPT-5.4 Mini or GPT-6.1 Terra cheaper?
GPT-5.4 Mini is cheaper on output tokens ($4.50 vs $5.00 per 1M).
Which has the larger context window, GPT-5.4 Mini or GPT-6.1 Terra?
GPT-6.1 Terra has the larger context window (1.1M tokens).
Pricing is indicative — confirm with the provider before production use. Highlighted values indicate the better figure for that row.