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Grok 2 vs o3 Pro
Comprehensive side-by-side LLM comparison
o3 Pro offers 160.7K more tokens in context window than Grok 2. Grok 2 is $88.00 cheaper per million tokens. Both models have their strengths depending on your specific coding needs.
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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.
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OpenAI
OpenAI o3-pro, released by OpenAI in June 2025, is an extended reasoning model from the o3 family that applies more compute per response to deliver deeper, more thorough answers on complex problems. It features a 200K token context window, 100K maximum output tokens, and vision capabilities. o3-pro targets research-grade reasoning tasks, extended coding sessions, and applications where accuracy on difficult problems justifies higher inference cost and latency.
10 months newer
Grok 2
xAI
2024-08-14
o3 Pro
OpenAI
2025-06-10
Pricing Comparison
Cost per million tokens (USD)
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Grok 2
Input:$2.00
Output:$10.00($88.00 cheaper)
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o3 Pro
Input:$20.00
Output:$80.00
Performance Metrics
Context window and performance specifications
Provider Availability & Performance
Available providers and their performance metrics
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Grok 2
1 providers
xAI
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o3 Pro
1 providers
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Grok 2
Avg Score:0.0%
Providers:1
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o3 Pro
Avg Score:0.0%
Providers:1