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OpenAI: GPT-5.5
gpt-5.5
GPT-5.5 is OpenAI’s frontier model designed for complex professional workloads, building on GPT-5.4 with stronger reasoning, higher reliability, and improved token efficiency on hard tasks. It features a 1M+ token...
Modalities
Input
textimagepdf
Output
text
Pricing
Cost per 1 million tokens
Input
$6
Output
$36
Model Specs
Context Window
1,050,000Max Output
130,000Release Date
2026-04-23Knowledge Cutoff
2025-12-01Capabilities
Reasoning
Tool Calling
Vision
Last Updated: 2026-04-23
Provider: