GPT-6 Astra

OpenAI · ~10 s on average

$4.76 / 1M input · $23.8 / 1M outputper picture

OpenAI's most powerful model (ChatGPT): hard reasoning, code, analysis, long texts. You can attach pictures.

GPT-6 Astra is the OpenAI flagship for the hardest tasks: multi-step reasoning, programming, document and data analysis, long texts. You pay for the actual tokens. Up to 10 pictures can be attached.

#A question or task as text — the model answers with text. Pictures in input_urls are optional.

ID: gpt-6-astra · $4.76 / 1M input · $23.8 / 1M output · ~10 s on average

Parameters (field input)

Example

curl -X POST https://mixmedia.tech/api/v1/jobs/createTask \
  -H "Authorization: Bearer $API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model":"gpt-6-astra","input":{"prompt":"Explain in simple words why the sky is blue","reasoning":"medium","response_format":"text"}}'

import os, requests

r = requests.post(
    "https://mixmedia.tech/api/v1/jobs/createTask",
    headers={"Authorization": f"Bearer {os.environ['API_KEY']}"},
    json={
      "model": "gpt-6-astra",
      "input": {
        "prompt": "Explain in simple words why the sky is blue",
        "reasoning": "medium",
        "response_format": "text"
      }
    },
)
print(r.json())  # {"code": 200, "data": {"taskId": "..."}}

const r = await fetch("https://mixmedia.tech/api/v1/jobs/createTask", {
  method: "POST",
  headers: { Authorization: `Bearer ${process.env.API_KEY}`, "Content-Type": "application/json" },
  body: JSON.stringify({
    "model": "gpt-6-astra",
    "input": {
      "prompt": "Explain in simple words why the sky is blue",
      "reasoning": "medium",
      "response_format": "text"
    }
  }),
});
console.log(await r.json()); // { code: 200, data: { taskId: "..." } }

#Price: per token

An average request costs ~$0.0066 (a short question, a one-page answer or a question with a photo). The price depends on length: fewer words and photos cost less.

• Tokens are actual: counted by the model itself. Input = prompt, instruction and pictures; output = the answer including the model's reasoning.
• Cost = input × input price / 1M + output × output price / 1M, rounded up to $0.0001.
• On create, a reserve for your question and up to 16384 output tokens is held (an answer never costs more than that). When the answer is ready the actual amount is charged and the rest is returned at once. A failed task returns the whole reserve.
• recordInfo and the callback return usage: input_tokens, output_tokens, total_tokens, cost (USD), estimated: false.

Example: a 400-character question (100 tokens) and a 4,000-character answer (1,000 tokens) = 100 × $4.76/1M + 1 000 × $23.8/1M = $0.0243.

#Result

Same as any task: call recordInfo or receive a callback. The answer is in resultJson.text, token usage and the charge are in usage (input_tokens, output_tokens, cost).

Upload your photos via files/upload or pass any public https links.

#Error handling

API responses are JSON {"code", "msg", "data"}; errors also have a string error field (type). On /api/v1/* the HTTP status matches body code.

#Example response bodies

400

{
  "code": 400,
  "msg": "input.duration: must be between 4 and 30, or \"auto\" / -1",
  "data": null,
  "error": "invalid_request_error"
}

401

{
  "code": 401,
  "msg": "Authentication failed. Please check your API key",
  "data": null,
  "error": "authentication_error"
}

402

{
  "code": 402,
  "msg": "Insufficient balance. Please top up and try again. Available: $0.01, required: $0.015. Top up at https://mixmedia.tech/cabinet/billing",
  "data": {
    "balance": "0.0100",
    "required": "0.0150",
    "currency": "USD",
    "topUpUrl": "https://mixmedia.tech/cabinet/billing"
  },
  "error": "payment_required"
}

429

{
  "code": 429,
  "msg": "Rate limit exceeded: 10 createTask/upload requests per 10 s per key. Retry after 8s",
  "data": null,
  "error": "rate_limit_error"
}

500

{
  "code": 500,
  "msg": "Internal server error",
  "data": null,
  "error": "server_error"
}

#Codes on createTask / upload

Example msg values: Authentication failed. Please check your API key (401); Insufficient balance. Please top up and try again… (402).

#Task errors (recordInfo)

If the task was created and then failed: state: "fail" (alias status: "failed"), failCode / failMsg, and error: { code, message, type }. Money is refunded (refunded: true).

#Rate limits

Over the limit — HTTP 429 and Retry-After.