> ## Documentation Index
> Fetch the complete documentation index at: https://docs.venice.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# GPT-6.1 Terra API

> GPT-6.1 Terra API on Venice: 1.05M context, $1.00 input and $5.00 output per 1M tokens. Anonymized access without your identity.

> [accordion] Plain-text specification
>
> ## GPT-6.1 Terra API
>
> GPT-6.1 Terra is a large language model by OpenAI, available on the Venice API as `openai-gpt-61-terra`. Requests are anonymized, so the provider never sees your identity.
>
> GPT-6.1 Terra is a fast, efficient model for visual reasoning, precise computer use, and clear, natural writing. It has a 1.05M token context window (922K input, 128K output), support for text and image inputs, and reasoning effort from none through max.
>
> ### GPT-6.1 Terra API pricing
>
> | Model ID | Variant | Privacy | Price |
> | - | - | - | - |
> | `openai-gpt-61-terra` | Standard | Anonymized | $1.00 / $5.00 per 1M |
>
> ### GPT-6.1 Terra specifications
>
> | Spec | Value |
> | - | - |
> | Provider | OpenAI |
> | Released | Oct 26, 2026 |
> | Privacy | Anonymized |
> | Status | Stable |
> | Context window | 1.05M tokens |
> | Max output | 128K tokens |
> | Reasoning effort | none, low, medium, high, xhigh, max |
>
> ### How to use the GPT-6.1 Terra API
>
> Send requests to `POST https://api.venice.ai/api/v1/responses` with `"model": "openai-gpt-61-terra"` and your API key.
>
> ```bash theme={"system"}
> curl https://api.venice.ai/api/v1/responses \
>   -H "Authorization: Bearer $VENICE_API_KEY" \
>   -H "Content-Type: application/json" \
>   -d '{
>     "model": "openai-gpt-61-terra",
>     "input": "Explain TEE attestation in two sentences.",
>     "reasoning": { "effort": "high" }
>   }'
> ```
>
> ### Related models
>
> * [GPT-5.6 Terra API](https://docs.venice.ai/models/gpt-5-6-terra.md): $2.00 / $12.00 per 1M
> * [Gemini 3.8 Flash API](https://docs.venice.ai/models/gemini-3-8-flash.md): $0.9375 / $4.69 per 1M
> * [Gemini 3.7 Flash API](https://docs.venice.ai/models/gemini-3-7-flash.md): $0.9375 / $4.69 per 1M
> * [Gemini 3.6 Flash API](https://docs.venice.ai/models/gemini-3-6-flash.md): $0.9375 / $4.69 per 1M
> * [Muse Spark Open API](https://docs.venice.ai/models/muse-spark-open.md): $1.56 / $5.31 per 1M


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