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GPT-5.5
OpenAI's current flagship, with strong agentic coding and good cost efficiency.
Capabilities:
Input
- Text input
- Image input (vision)
- File input (PDF)
- Audio input
- Video input
Output
- Text output
- Image output
- Audio output
Fast mode:
Output speed
Up to 1.5x fasterFast mode price
$12.5 / $75 per MStandard price
$5 / $30 per MPrice premium
up to 2.5x
Pricing & availability:
OpenRouter
$5 / $30 per MAzure AI Foundry
$5 / $30 per MOpenAI API
$5 / $30 per M
Strengths:
agentic codingreasoningskill use
Sources:
Details:
Provider
OpenAIContext window
1.05MInput price
$5/MOutput price
$30/MOpen weights
NoKnowledge cutoff
Dec 2025Released
Apr 2026
