GPT-5.6 Terra effort guide: ★ High recommended, ability and cost by effort
GPT-5.6 Terra (OpenAI): the recommended effort is ★ High, ability 26.8 at $0.901 per reference coding task. One step up to XHigh: +6.7 ability for ×1.73 the cost.
Ability, cost and time at each effort
GPT-5.6 Terra · OpenAI · ★ High
| Effort | Ability | vs ★ | Cost / task | Cost × | Time × |
|---|---|---|---|---|---|
| None | 0.6 | -26.2 | $0.398 | ×0.44 | — |
| Low | 14.6 | -12.2 | $0.399 | ×0.44 | ×0.55 (est.) |
| Med | 19.5 | -7.3 | $0.512 | ×0.57 | ×0.72 (est.) |
| ★ High | 26.8 | — | $0.901 | ×1.00 | ×1.00 (est.) |
| XHigh | 33.5 | +6.7 | $1.56 | ×1.73 | ×2.01 (est.) |
| Max | 42.7 | +15.9 | $3.45 | ×3.84 | ×5.68 (est.) |
Cost is the API cost of one reference coding task; cost × and time × are relative to the ★ recommended effort. Open in the effort console
In OpenAI's lineup
Outclassed. A better pick: GPT-6 Luna
- GPT-6 Luna → GPT-6.1 Sol: ability +15.9, cost ×3.65
Other models from this maker: GPT-6 Astra · GPT-6 Luna · GPT-5.6 Sol · GPT-6.1 Sol
Data published 2026-10-15 11:33 UTC · All data is also available through the public API