GPT-5.6 Terra pricing
GPT-5.6 Terra, Mid-tier from OpenAI, costs $2.00 per 1M input tokens and $12.00 per 1M output tokens.
Input$2.00per 1M tokens
Output$12.00per 1M tokens
Context window1.05Mtokens
TierMidOpenAI
Price your own workload against GPT-5.6 Terra in the calculator →
Specs and pricing
| Provider | OpenAI |
| Tier | Mid |
| Context window | 1.05M tokens |
| Max output | 128K tokens |
| Input price | $2.00 / 1M tokens |
| Output price | $12.00 / 1M tokens |
| Cache write | $2.50 / 1M tokens |
| Cache read | $0.20 / 1M tokens |
| Modalities | text, image |
| Released | 2026-07 |
Note. One flat rate: unlike Sol and Cyber, Terra has no long-context surcharge tier on the pricing page.
What it costs at realistic volumes
Assuming a 4:1 input:output token ratio, a common shape for chat and RAG-style workloads:
| Volume (4:1 in:out ratio) | Input cost | Output cost | Total / month |
|---|---|---|---|
| 1,000,000 in / 250,000 out | $2.00 | $3.00 | $5.00 |
| 10,000,000 in / 2,500,000 out | $20.00 | $30.00 | $50.00 |
| 100,000,000 in / 25,000,000 out | $200.00 | $300.00 | $500.00 |
Cheaper alternatives
Same tier (Mid), a different provider, and a lower blended cost at the 4:1 ratio used above:
| Model | Provider | $/1M in | $/1M out | At the 4:1 ratio |
|---|---|---|---|---|
| GPT-OSS 120B | OpenRouter | $0.037 | $0.17 | 98.4% cheaper blended |
| GPT-OSS 120B | Novita AI | $0.05 | $0.25 | 97.8% cheaper blended |
| Llama-3.3-70B-Instruct-Turbo | DeepInfra | $0.10 | $0.32 | 96.4% cheaper blended |
| Nemotron 3 Super | OpenRouter | $0.085 | $0.40 | 96.3% cheaper blended |
| DeepSeek V4 Flash 0731 | Baseten | $0.13 | $0.26 | 96.1% cheaper blended |