What is GPT-6.1 Terra?

GPT-6.1 Terra is a model from OpenAI, released on Oct 26, 2026. OpenAI model for visual reasoning, computer use, and writing.

How much does GPT-6.1 Terra cost?

On the Respan gateway, GPT-6.1 Terra costs from $0.50 per 1M input tokens and $2.50 per 1M output tokens on OpenAI and OpenRouter, after gateway discounts. Averaged across its 3 routes from 2 providers, it costs $0.67 per 1M input tokens and $3.33 per 1M output tokens.

Which providers serve GPT-6.1 Terra on Respan?

GPT-6.1 Terra is available through 3 routes from 2 providers: OpenAI and OpenRouter.

What is GPT-6.1 Terra's context window?

GPT-6.1 Terra accepts up to 1.1M tokens of context on its largest provider route.

How do I use GPT-6.1 Terra with the Respan gateway?

Point any OpenAI-compatible SDK at https://api.respan.ai/api/ with your Respan API key and set the model to "openai/gpt-6.1-terra". To set it up with a coding agent, copy the agent setup prompt at the top of this page.

How fast is GPT-6.1 Terra?

Over the last 30 days of requests through the Respan gateway, the fastest provider was OpenAI at 21 tokens per second, and the lowest response latency was 0.9 seconds on OpenAI. Speed varies with request size and provider.

GPT-6.1 Terra

OpenAI model for visual reasoning, computer use, and writing.

Input / output, fromSave up to 50%: $0.50 / $2.50 per 1M
Weekly tokens / requests: 239 / 8
Context: 1.1M tokens
Released: Oct 26, 2026

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Agent setup

Paste into Claude Code, Cursor, or Codex

Help me set up the Respan gateway: fetch and follow https://www.respan.ai/docs/agent-setup.md. Use model "openai/gpt-6.1-terra".

from openai import OpenAI

client = OpenAI(

    base_url="https://api.respan.ai/api/",

    api_key="YOUR_RESPAN_API_KEY",

)

response = client.chat.completions.create(

    model="openai/gpt-6.1-terra",

    messages=[{"role": "user", "content": "Hello!"}],

)

print(response.choices[0].message.content)

import OpenAI from "openai";

const client = new OpenAI({

  baseURL: "https://api.respan.ai/api/",

  apiKey: "YOUR_RESPAN_API_KEY",

});

const response = await client.chat.completions.create({

  model: "openai/gpt-6.1-terra",

  messages: [{ role: "user", content: "Hello!" }],

});

console.log(response.choices[0].message.content);

curl https://api.respan.ai/api/chat/completions \

  -H "Authorization: Bearer YOUR_RESPAN_API_KEY" \

  -H "Content-Type: application/json" \

  -d '{

    "model": "openai/gpt-6.1-terra",

    "messages": [{"role": "user", "content": "Hello!"}]

}'

Read docs

Providers

3 routes from 2 providers, cheapest first, priced per 1M tokens after gateway discounts.

Provider	Context	Input	Output	Cache read	Capabilities
OpenAISave 50%`openai/gpt-6.1-terra`	1.1M	$0.50/M	$2.50/M	$0.03/M	+2
OpenRouter`openrouter/openai/gpt-6.1-terra:batch`	1.1M	$0.50/M	$2.50/M	$0.03/M	+2
OpenRouter`openrouter/openai/gpt-6.1-terra`	1.1M	$1.00/M	$5.00/M	$0.05/M	+2

Is a provider down? OpenAI status, OpenRouter status

Pricing

Averaged across 3 routes from 2 providers, in USD per 1M tokens after gateway discounts.

Average input: $0.67 per 1M
Average output: $3.33 per 1M
Average cache read: $0.03 per 1M
Average cache write: $0.83 per 1M

Cost by volume

Total cost from 0 to 1T tokens on the cheapest and most expensive provider.

Highest$1.00/MOpenRouterLowest$0.50/MOpenAI and OpenRouter

Throughput and latency

30-day averages from requests through the Respan gateway, 1 of 3 routes had traffic in that window. Under each figure, every model on the gateway by its average, this one in blue.