GPT 6 Astra - MixRoute API

OpenAI model for demanding reasoning, coding, and complex end-to-end professional work.

Model Information

Field	Description
`model`	gpt-6-astra
`context`	1,050,000 tokens
`max output`	128K tokens
`endpoint`	POST /v1/responses

Context and output sizes describe the model specification. Effective request limits, availability, and billing depend on the MixRoute route.

Capabilities and Usage

Accepts text and images and produces text.
Use reasoning.effort: low, medium, high, xhigh, or max. Use the Responses API for reasoning with function tools; do not assume Chat Completions accepts the same combinations.

Request Example

Set MIXROUTE_API_KEY before making the request.

curl --request POST "https://api.mixroute.ai/v1/responses" \
  --header "Authorization: Bearer $MIXROUTE_API_KEY" \
  --header "Content-Type: application/json" \
  --data '{
  "model": "gpt-6-astra",
  "input": "Explain the tradeoffs of database indexes.",
  "reasoning": {
    "effort": "low"
  },
  "max_output_tokens": 1024,
  "store": false
}'

Request Fields

Field	Description
`model`	Required. Use the exact model ID above.
`input`	Required input text or Responses input items.
`reasoning.effort`	Reasoning effort, using the model-specific values described above.
`max_output_tokens`	Budget for generated output, including reasoning tokens.
`store`	Whether to store the response. This example disables storage.

Complete request format: responses-openai.