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LLM Model Comparison
Compare LLM model specifications and capabilities side by side
step3
StepFun
gpt-5.2-codex
OpenAIModalities
Modalities
Specifications
Specifications
Context Length
65,536
Context Length
400,000
Max Output Tokens
65,536
Max Output Tokens
128,000
Release Date
8/28/2025
Release Date
1/14/2026
Pricing
Pricing
Input Price ($/M tokens)
67.4% cheaper
$0.57
Input Price ($/M tokens)
$1.75
Output Price ($/M tokens)
89.9% cheaper
$1.42
Output Price ($/M tokens)
$14.00
Capabilities
Capabilities
Reasoning
Reasoning
Tool Calling
Tool Calling
Structured Outputs
Structured Outputs
Web Search
Web Search