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GPT-5.4 Pro OpenAI Legacy GPT-6 Astra Pro OpenAI
Input $30.00 $10.00, Best in row
Output $180.00 $50.00, Best in row
Blended $67.50 $20.00, Best in row
Context window 1.05M, Best in row 1.05M
Max output 128k, Best in row 128k
Vision ✓ ✓
Reasoning ✓ ✓
Tool calling ✓ ✓
Structured output ✓ ✓
Prompt caching − ✓
Batch API ✓ −
Licence Proprietary Proprietary
API model id gpt-5.4-pro gpt-6-astra-pro

At a glance

Input price, per million tokens
  1. GPT-5.4 ProOpenAI$30.00
  2. GPT-6 Astra ProOpenAI$10.00
Output price, per million tokens
  1. GPT-5.4 ProOpenAI$180
  2. GPT-6 Astra ProOpenAI$50.00

Popular comparisons

Head-to-head pages for models people weigh against each other.

Language models 77
Image generation 18
Video generation 11
Text to speech 9
Speech to text 25
Voice and realtime 17
Embeddings 3