grok-4-0709 vs GPT-5.6 Terra
GPT-5.6 Terra is cheaper on output tokens, while GPT-5.6 Terra offers a larger context window. Choose grok-4-0709 or GPT-5.6 Terra based on the trade-off between cost, context, and the benchmarks that matter for your use case.
| Spec | grok-4-0709 | GPT-5.6 Terra |
|---|---|---|
| Provider | Jiekou.AI | OpenAI |
| Input / 1M tokens | $2.70 | $2.00 |
| Output / 1M tokens | $13.50 | $12.00 |
| Context window | 256K | 1.1M |
| Parameters | — | — |
| Open weights | No | — |
| Released | Jan 2026 | — |
| LiveBench score | 61.8 | — |
| GPQA Diamond score | — | 93.3 |
| Epoch Capabilities Index score | — | 159 |
| LMArena (Chatbot Arena) Elo score | — | 1447 |
| LMArena WebDev Elo score | — | 1522 |
| LMArena Vision Elo score | — | 1271 |
FAQ
Is grok-4-0709 or GPT-5.6 Terra cheaper?
GPT-5.6 Terra is cheaper on output tokens ($12.00 vs $13.50 per 1M).
Which has the larger context window, grok-4-0709 or GPT-5.6 Terra?
GPT-5.6 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.