GPT-6 Astra Pro API

GPT-6 Astra Pro is a large language model by OpenAI, available on the Venice API as openai-gpt-6-astra-pro. Requests are anonymized, so the provider never sees your identity.GPT-6 Astra with pro reasoning mode for difficult tasks that benefit from more model work. Supports text and image inputs with a 1.05M token context window. Pro mode can use more tokens and take longer than standard Astra.

GPT-6 Astra Pro API pricing

Model ID	Variant	Privacy	Price
`openai-gpt-6-astra-pro`	Standard	Anonymized	$12.50 input /$ 62.50 output per 1M tokens

GPT-6 Astra Pro specifications

Spec	Value
Provider	OpenAI
Released	Sep 5, 2026
Privacy	Anonymized
Context window	1.05M tokens
Max output	125K tokens
Reasoning effort	low, medium, high, xhigh, max

How to use the GPT-6 Astra Pro API

Send requests to POST https://api.venice.ai/api/v1/responses with "model": "openai-gpt-6-astra-pro" and your API key.

curl https://api.venice.ai/api/v1/responses \
  -H "Authorization: Bearer $VENICE_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "openai-gpt-6-astra-pro",
    "input": "Explain TEE attestation in two sentences.",
    "reasoning": { "effort": "high" }
  }'

GPT-6 Astra Pro API FAQ

How much does the GPT-6 Astra Pro API cost?

12.50 per 1M input tokens and

62.50 per 1M output tokens, with cached input at $1.25 per 1M. Prices are in USD and can be paid in DIEM at parity.

What is the GPT-6 Astra Pro model ID?

Use openai-gpt-6-astra-pro as the model parameter.

Is the GPT-6 Astra Pro API private?

GPT-6 Astra Pro is anonymized: Venice forwards requests to the provider without your identity, but the provider may retain prompt data, so use a private model for sensitive work.

What is the context window of GPT-6 Astra Pro?

1.05M tokens of context, with up to 125K output tokens per response.

What does GPT-6 Astra Pro support?

GPT-6 Astra Pro supports function calling, structured outputs, reasoning, image input, web search and prompt caching. Reasoning effort is adjustable with reasoning_effort: low, medium, high, xhigh and max (default high).

Which endpoint does the GPT-6 Astra Pro API use?

Call POST /responses. /chat/completions is also supported. Pro and Codex models are Responses-native upstream. Use /responses for typed reasoning, tool-call and message items; /chat/completions stays fully supported.

Related models

Claude Fable 5.1 API: $12.00 input /$ 60.00 output per 1M tokens
Claude Fable 5 API: $12.00 input /$ 60.00 output per 1M tokens
GPT-6 Astra API: $10.00 input /$ 50.00 output per 1M tokens
Claude Opus 5 API: $6.00 input /$ 30.00 output per 1M tokens

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