GPT-6 Astra Proon Krater.ai
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. Cost note: pro mode spends far more
Released September 4, 2026
Specifications
GPT-6 Astra Pro at a glance
Context
1.1M tokens
Max output
128K tokens
Input
File, Image, Text
Output
Text
Input price
$10.00 / 1M
Output price
$50.00 / 1M
Krater rank
#36
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Live ChatGPT statusCapabilities
What it is good at
Catalog capabilities
- Accepts image input
- Generates text responses
- Supports tool calling
- Supports structured outputs
Good for
Compare
Compare GPT-6 Astra Pro
GPT-6 Astra Pro vs GPT-6 Sol
GPT-6 Sol is the cost-efficient high-end model in OpenAI's GPT-6 series, positioned below the flagship GPT-6 Astra and above the fast GPT-6 Luna tier.
Open comparisonGPT-6 Astra Pro vs GPT-6 Luna
GPT-6 Luna is the fast, cost-efficient model in OpenAI's GPT-6 series, positioned below GPT-6 Sol.
Open comparisonGPT-6 Astra Pro vs GPT-5.1
GPT-5.1 is the latest frontier-grade model in the GPT-5 series, offering stronger general-purpose reasoning, improved instruction adherence, and a more natural conversational style compared to GPT-5.
Open comparisonFAQ
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