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~openai/gpt-astra-latest

~openai/gpt-astra-latest is an LLM tool from OpenAI that runs in the background and returns text and structured JSON. Pay as you go, with one API key.

Pricing

Up to $0.26681 per run at the default inputs. $13.00 per 1M input tokens, $1.30 per 1M cached input tokens, $16.25 per 1M cache write tokens, $65.00 per 1M output tokens.

Limits

Runs
In the background
Returns
text, json
Longest queue wait
1 hour
Run deadline
30 minutes
Longest run, end to end
225 minutes
Largest inline input
1 MB
Largest input file
500 MB
Largest output
5 GB
Outputs per run
16

Input

FieldKindDefaultDescription
messages requiredJSON—

The conversation so far, oldest first.

seednumber (whole)—
stopJSON—
toolsJSON—
reasoningJSON—

Reasoning effort; reasoning tokens count toward max_tokens.

max_tokensnumber (whole)
1 to 128000
—

The most output tokens to generate.

tool_choiceJSON—
response_formatJSON—
reasoning_effortone of
low, medium, high, xhigh, max
—

How much the model reasons.

parallel_tool_callstrue or false—

Same request in code

curl https://api.spiral.ai/v1/runs \
  -H "Authorization: Bearer $SPIRAL_API_KEY" \
  -H "Content-Type: application/json" \
  -H "Idempotency-Key: $(uuidgen)" \
  -d '{
    "provider": "openai",
    "model": "~openai/gpt-astra-latest",
    "input": {
      "messages": {}
    }
  }'