Last refreshed 2026-10-26. Next refresh: weekly.
Why use GPT-6.1 Terra on Azure OpenAI?
Azure OpenAI offers GPT-6.1 Terra. Azure OpenAI Service hosts OpenAI's GPT-4o, GPT-4, GPT-3.5, and embedding models on Microsoft Azure with enterprise SLAs.
Compare GPT-6.1 Terra across 4 providers to find the best fit for your use caseSetup recipe
Python + curlpip install openaiexport AZURE_OPENAI_API_KEY=...import os
from openai import AzureOpenAI
client = AzureOpenAI(
azure_endpoint=os.environ["AZURE_OPENAI_ENDPOINT"], # e.g. https://{resource}.openai.azure.comgpt-6.1-terraRequest example
import os
from openai import AzureOpenAI
client = AzureOpenAI(
azure_endpoint=os.environ["AZURE_OPENAI_ENDPOINT"], # e.g. https://{resource}.openai.azure.com
api_key=os.environ["AZURE_OPENAI_API_KEY"],
api_version="2024-02-01"
)
response = client.chat.completions.create(
model="gpt-6.1-terra", # your deployment name
messages=[{"role": "user", "content": "Hello"}]
)
print(response.choices[0].message.content)Gotchas
- gpt-6.1-terra is your Azure deployment name, not the underlying model name. Deployment names are set when you deploy a model in Azure AI Foundry / Azure OpenAI Studio.
- The examples expect AZURE_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 | — | — |
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.