Frontier
Vision
OpenAI
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Claude 4.5 Sonnet
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GPT-5.2 (Thinking)
OpenAI's flagship model configured for maximum reasoning effort.
Model Specifications
Context window
400,000 tokens
Max output
128,000 tokens
Knowledge cutoff
August 2025
Multipart messages
Yes
Vision capabilities
Yes
Default Parameters
Temperature
0.3
Top P
1.0
Frequency penalty
0.0
Presence penalty
0.0
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