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LLM Model Comparison
Compare LLM model specifications and capabilities side by side
o1-pro
OpenAIgpt-5.2-codex
OpenAIModalities
Modalities
Specifications
Specifications
Context Length
200,000
Context Length
400,000
Max Output Tokens
100,000
Max Output Tokens
128,000
Release Date
3/19/2025
Release Date
1/14/2026
Pricing
Pricing
Input Price ($/M tokens)
$150.00
Input Price ($/M tokens)
98.8% cheaper
$1.75
Output Price ($/M tokens)
$600.00
Output Price ($/M tokens)
97.7% cheaper
$14.00
Capabilities
Capabilities
Reasoning
Reasoning
Tool Calling
Tool Calling
Structured Outputs
Structured Outputs
Web Search
Web Search