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Grok-2 vs o3
Comprehensive side-by-side LLM comparison
o3 leads with 20.6% higher average benchmark score. o3 offers 164.0K more tokens in context window than Grok-2. o3 is $2.00 cheaper per million tokens. Overall, o3 is the stronger choice for coding tasks.
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xAI
Grok 2 was developed as the second generation of xAI's language model family, designed to provide enhanced reasoning, knowledge, and conversational abilities. Built with architectural improvements and expanded training, it represents a significant advancement in xAI's model capabilities.
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OpenAI
o3 represents the next generation in OpenAI's reasoning model series, developed to advance the capabilities of deliberate, step-by-step problem solving. Built to handle increasingly complex challenges across mathematics, science, and coding, it continues the evolution of reasoning-focused AI with improved analytical depth and accuracy.
8 months newer
Grok-2
xAI
2024-08-13
o3
OpenAI
2025-04-16
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Pricing Comparison
Cost per million tokens (USD)
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Grok-2
Input:$2.00
Output:$10.00
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o3
Input:$2.00
Output:$8.00($2.00 cheaper)
Performance Metrics
Context window and performance specifications
Average performance across 3 common benchmarks
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Grok-2
Average Score:63.7%
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o3
Average Score:84.3%(+20.6%)
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Knowledge Cutoff
Training data recency comparison
o3
2024-05-31
More recent knowledge cutoff means awareness of newer technologies and frameworks
Provider Availability & Performance
Available providers and their performance metrics
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Grok-2
1 providers
xAI
Throughput: 85 tok/s
Latency: 0.7ms
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o3
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Grok-2
Avg Score:63.7%
Providers:1
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o3
Avg Score:84.3%(+20.6%)
Providers:1