OpenAI
OpenAI: GPT-5.6 Terra
openai/gpt-5.6-terra-20260709
GPT-5.6 Terra is a balanced model in OpenAI's GPT-5.6 series, positioned between the flagship Sol tier and the cost-efficient Luna tier. It is suited for everyday coding, reasoning, and agentic...
OpenAI: GPT-5.6 Terra usage over time
OpenRouter share of tokens, by day.
OpenAI: GPT-5.6 Terra holds 0.57% today, up from 0.22% at the start of the visible window.
Rank history
Adoption curve vs the pantheon
OpenAI: GPT-5.6 Terra's share plotted against days since first tracked, overlaid on other current leaders on the same axis. The question every new-model page asks: is this one going to make it?
Citable stat
As of 2026-09-01, OpenAI: GPT-5.6 Terra holds 0.6% of OpenRouter token share, down 0.47pp over 30 days. Source: Tidelines (OpenRouter).
Cost per session
Median dollars spent on one OpenAI: GPT-5.6 Terra session, by coding agent and session length.
Token rate sets the price; session length and reasoning set the bill.
| Agent | 1 turn | 2–9 turns | 10–49 turns | 50+ turns |
|---|---|---|---|---|
| Kilo Code | — | $0.130 | $0.482 | — |
| Codex | $0.028 | $0.078 | $0.333 | $2.11 |
| Hermes Agent | $0.024 | $0.076 | $0.332 | $2.41 |
| Claude Code | — | $0.079 | $0.308 | — |
Where to run it
OpenAI: GPT-5.6 Terra pricing by provider
Per-provider pricing, context, and uptime via OpenRouter. Sorted by output price.
OpenAI: GPT-5.6 Terra is served by 6 tracked endpoints on OpenRouter. The cheapest output price is $6.00 per million tokens from OpenAI · 1050k, and the most expensive is $24.00 from OpenAI · 1050k. The largest context window offered is 1050k tokens. Prices are list rates and refresh daily.
| Provider | Input $/M | Output $/M | Context | Uptime |
|---|---|---|---|---|
| OpenAI · 1050k | $1.00 | $6.00 | 1050k | 100.00% |
| Azure · 1050k | $2.00 | $12.00 | 1050k | 99.98% |
| OpenAI · 1050k | $2.00 | $12.00 | 1050k | 99.64% |
| Azure · 1050k | $2.20 | $13.20 | 1050k | 100.00% |
| Amazon Bedrock | $2.20 | $13.20 | 1050k | — |
| OpenAI · 1050k | $4.00 | $24.00 | 1050k | 99.76% |