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Grok 4 vs o3 Pro
Comprehensive side-by-side LLM comparison
o3 Pro offers 21.5K more tokens in context window than Grok 4. Grok 4 is $70.00 cheaper per million tokens. Both models have their strengths depending on your specific coding needs.
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xAI
Grok 4, released by xAI on July 10, 2025, is a large language model featuring first-principles reasoning and comprehensive multimodal support. It features a 260K token context window and demonstrated strong performance on advanced reasoning and coding benchmarks. Grok 4 targets complex multi-step reasoning tasks, scientific analysis, and agentic workflows 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.
1 month newer
o3 Pro
OpenAI
2025-06-10
Grok 4
xAI
2025-07-10
Pricing Comparison
Cost per million tokens (USD)
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Grok 4
Input:$5.00
Output:$25.00($70.00 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 4
1 providers
xAI
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o3 Pro
1 providers
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Grok 4
Avg Score:0.0%
Providers:1
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o3 Pro
Avg Score:0.0%
Providers:1