Last refreshed 2026-10-26. Next refresh: weekly.
Why use GPT-6.1 Terra on OpenAI API?
OpenAI API offers GPT-6.1 Terra with pay-as-you-go pricing at $1.00/1M input tokens. OpenAI is a leading AI research and deployment company dedicated to developing safe and beneficial artificial general intelligence (AGI) for humanity.
Compare GPT-6.1 Terra across 4 providers to find the best fit for your use caseSetup recipe
Python + curlpip install openaiexport OPENAI_API_KEY=...import os
from openai import OpenAI
client = OpenAI() # reads OPENAI_API_KEY from env
response = client.chat.completions.create(gpt-6.1-terraRequest example
import os
from openai import OpenAI
client = OpenAI() # reads OPENAI_API_KEY from env
response = client.chat.completions.create(
model="gpt-6.1-terra",
messages=[{"role": "user", "content": "Hello"}]
)
print(response.choices[0].message.content)Gotchas
- Use the model slug directly, e.g. "gpt-4o" or "gpt-4.1-mini".
- The examples expect OPENAI_API_KEY; rename it only if your application config maps the new variable.
Compare GPT-6.1 Terra Across Providers
| Provider | Input (per 1M) | Output (per 1M) |
|---|---|---|
| OpenAI API | $1.00 | $5.00 |
| OpenRouter | $1.00 | $5.00 |
| Vercel AI Gateway | $1.00 | $5.00 |
| Azure OpenAI | — | — |
Pricing
| Type | Price (per 1M) |
|---|---|
| Input tokens | $1.00 |
| Output tokens | $5.00 |
Capabilities
About GPT-6.1 Terra
OpenAI GPT-6.1 Terra (API id gpt-6.1-terra), announced October 26, 2026, is the GPT-6.1 tier for fast, efficient visual reasoning, precise computer use, and clear, natural writing, positioned below GPT-6.1 Sol and GPT-6 Astra for complex coding and in-depth research. First-party docs: 1,050,000 context window (922,000 max input), 128,000 max output, knowledge cutoff Jun 1, 2026, text and image input to text output, reasoning.effort none/low/medium (default)/high/xhigh/max, function calling, structured outputs, prompt caching, Batch API, and computer use and code interpreter via Responses tools; fine-tuning not supported. Available in ChatGPT Work and Codex for Plus, Pro, Enterprise, and Edu users.