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LLM Model Comparison
Compare LLM model specifications and capabilities side by side
gpt-5.1-codex-mini
OpenAI
step3
StepFunModalities
Modalities
Specifications
Specifications
Context Length
400,000
Context Length
65,536
Max Output Tokens
100,000
Max Output Tokens
65,536
Release Date
11/13/2025
Release Date
8/28/2025
Pricing
Pricing
Input Price ($/M tokens)
56.1% cheaper
$0.25
Input Price ($/M tokens)
$0.57
Output Price ($/M tokens)
$2.00
Output Price ($/M tokens)
29.0% cheaper
$1.42
Capabilities
Capabilities
Reasoning
Reasoning
Tool Calling
Tool Calling
Structured Outputs
Structured Outputs
Web Search
Web Search