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GPT-5.1 Codex Max vs Grok 2
Comprehensive side-by-side LLM comparison
Grok 2 supports multimodal inputs. Both models have their strengths depending on your specific coding needs.
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OpenAI
GPT-5.1 Codex Max, released by OpenAI in November 2025, is an enhanced coding variant from the GPT-5.1 Codex line, designed for more complex software engineering tasks requiring additional reasoning depth. It targets large-scale code generation, automated refactoring, and sophisticated agentic development workflows.
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xAI
Grok 2, released by xAI in August 2024, is a large language model with 131K token context window and native image understanding, developed with access to real-time information from the X platform. It features multimodal input capabilities and improved reasoning over its predecessor. Grok 2 targets conversational assistants, image analysis, and real-time information retrieval tasks via the xAI API.
1 year newer
Grok 2
xAI
2024-08-14
GPT-5.1 Codex Max
OpenAI
2025-11
Performance Metrics
Context window and performance specifications
Provider Availability & Performance
Available providers and their performance metrics
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GPT-5.1 Codex Max
0 providers
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Grok 2
1 providers
xAI
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GPT-5.1 Codex Max
Avg Score:0.0%
Providers:0
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Grok 2
Avg Score:0.0%
Providers:1