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LLM Model Comparison
Compare LLM model specifications and capabilities side by side
step3
StepFun
gpt-4o:extended
OpenAIModalities
Modalities
Specifications
Specifications
Context Length
65,536
Context Length
128,000
Max Output Tokens
65,536
Max Output Tokens
64,000
Release Date
8/28/2025
Release Date
5/13/2024
Pricing
Pricing
Input Price ($/M tokens)
90.5% cheaper
$0.57
Input Price ($/M tokens)
$6.00
Output Price ($/M tokens)
92.1% cheaper
$1.42
Output Price ($/M tokens)
$18.00
Capabilities
Capabilities
Reasoning
Reasoning
Tool Calling
Tool Calling
Structured Outputs
Structured Outputs
Web Search
Web Search