openai

OpenAI: GPT-6 Astra Pro

Name: OpenAI: GPT-6 Astra Pro
Creator: openai
Published: 2026-09-04T20:13:55.000Z

Source description (English)

GPT-6 Astra Pro is the same underlying model as GPT-6 Astra, served with reasoning.mode set to pro for higher-quality responses on complex tasks. Learn more in OpenAI's docs: https://developers.openai.com/api/docs/guides/reasoning#reasoning-mode

View source on OpenRouter

Overview

Model specifications

Context: 1,050,000 tokens
Maximum output: 128,000 tokens
Architecture: text+image+file->text
Tokenizer: GPT
Knowledge cutoff: Not provided
Moderated: Yes

OPENROUTER

Complete pricing

Synchronized OpenRouter rates. Token prices are shown per one million tokens.

Input: $10
Output: $50
Cache read: $1
Cache write: $12.5
Web search: $10

API

Model configuration

Reasoning

Reasoning required: Yes
Default parameters: medium
Capabilities: max, xhigh, high, medium, low

API

Quick start

Set OPENROUTER_API_KEY locally. Python requires requests; JavaScript runs in Node.js. Keep the key on the server.

API documentation

curl --fail-with-body https://openrouter.ai/api/v1/chat/completions \
  -H "Authorization: Bearer $OPENROUTER_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model":"openai/gpt-6-astra-pro","messages":[{"role":"user","content":"Hello!"}]}'

Capabilities

Input → Output

Input

fileimagetext

Output

text

Reasoning

Yes · max · xhigh · high · medium · low

API

Supported API parameters

include_reasoningmax_completion_tokensmax_tokensreasoningreasoning_effortresponse_formatseedstructured_outputstool_choicetools

Available providers

5 providers

Checked: September 8, 2026

Live providers on OpenRouter

Provider availability, latency, throughput and routing can change continuously. Open the source page for current operational data.

OpenRouter

OpenAI

Not provided

Context: 1.1M
Maximum output: 128K
Input: $5
Output: $25
Cache read: $0.5
Cache write: $6.25

Azure

Not provided

Context: 1.1M
Maximum output: 128K
Input: $10
Output: $50
Cache read: $1
Cache write: $12.5

OpenAI

Not provided

Context: 1.1M
Maximum output: 128K
Input: $10
Output: $50
Cache read: $1
Cache write: $12.5

Azure

Not provided

Context: 1.1M
Maximum output: 128K
Input: $11
Output: $55
Cache read: $1.1
Cache write: $13.75

OpenAI

Not provided

Context: 1.1M
Maximum output: 128K
Input: $20
Output: $100
Cache read: $2
Cache write: $25

openai

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All models

openai

Released Sep 4, 2026