// openai
GPT-6.1 Terra
openai/gpt-6.1-terra
GPT-6.1 Terra costs $1.00 per 1M input tokens and $5.00 per 1M output tokens with a 1.1M-token context window.
A reasoning, tool-calling model from openai, released Oct 26, 2026. LiveBench hasn't published a run for it, so this page carries measured price and specs only — no benchmark numbers.
- Input / 1M
- $1.00
- Output / 1M
- $5.00
- Context
- 1.1M
- LiveBench overall
- Not evaluated
Specs and pricing
| Input price USD per 1M prompt tokens | $1.00 |
|---|---|
| Output price USD per 1M completion tokens, reasoning included | $5.00 |
| Blended price 3:1 input:output — #96 most expensive of 354 listed models | $2.00 |
| Cached input read Blank means not priced separately — not free | $0.050 |
| Cache write | $1.25 |
| Context window | 1,050,000 tokens |
| Max output | 128,000 tokens |
| Input modalities | file, image, text |
| Tool calling | Yes |
| Extended reasoning | Yes |
| Knowledge cutoff | — |
| Listed | Oct 26, 2026 |
Also listed as openai/gpt-6.1-terra:batch ($1.00 blended)— the same model at a different price or rate limit.
What GPT-6.1 Terra costs to run
Monthly list cost across five workload shapes, using the published cached-input rate where there is one. A floor, not a quote — batch discounts and cache writes aren't included.
| Workload | Per month |
|---|---|
| Support chatbot 1.2K in / 400 out × 200K requests | $571.60/mo |
| RAG assistant 8K in / 600 out × 100K requests | $720.00/mo |
| Coding agent 40K in / 4K out × 20K requests | $668.00/mo |
| Document extraction 20K in / 1.5K out × 50K requests | $1,328/mo |
| Bulk classification 500 in / 20 out × 5M requests | $2,525/mo |
GPT-6.1 Terra FAQ
How much does GPT-6.1 Terra cost?
GPT-6.1 Terra lists at $1.00 per 1M input tokens and $5.00 per 1M output tokens, with cached input reads at $0.050 per 1M. A RAG assistant handling 100K requests a month (8K tokens in, 600 out) comes to about $720.00 at list price.
What is the context window of GPT-6.1 Terra?
GPT-6.1 Terra accepts up to 1,050,000 tokens of context and can return up to 128,000 output tokens per response.
Does GPT-6.1 Terra support tool calling?
Yes — GPT-6.1 Terra supports tool (function) calling and exposes extended reasoning. It accepts file, image, text input.
How does GPT-6.1 Terra score on benchmarks?
LiveBench has not published a run for GPT-6.1 Terra yet. Until it does, compare it on price and specs, or run your own evaluation on your own tasks.
What is the API model ID for GPT-6.1 Terra?
On OpenRouter the model ID is "openai/gpt-6.1-terra". It was listed on Oct 26, 2026.
More from openai
How these numbers are produced
- Price and specs — provider list data from OpenRouter, refreshed every 15 minutes. “Blended” is a 3:1 input:output mix.
- Scores and ranks — LiveBench release —. Ranks count only models that have a published run; a blank means “not evaluated”, never “bad”.
- Cost per point — the measured dollars LiveBench spent on the run, divided by the score it earned.
Published benchmarks rank models on someone else's tasks. Before committing, see LLM & agent evaluation for building an eval on your own.