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Grok-2 vs o3
Comprehensive side-by-side LLM comparison
o3 leads with 32.3% 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 is a multimodal language model developed by xAI. It achieves strong performance with an average score of 76.5% across 8 benchmarks. It excels particularly in DocVQA (93.6%), HumanEval (88.4%), MMLU (87.5%). It supports a 136K token context window for handling large documents. The model is available through 1 API provider. As a multimodal model, it can process and understand text, images, and other input formats seamlessly. Released in 2024, it represents xAI's latest advancement in AI technology.
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OpenAI
o3 is a multimodal language model developed by OpenAI. It achieves strong performance with an average score of 67.5% across 22 benchmarks. It excels particularly in COLLIE (98.4%), AIME 2024 (91.6%), ARC-AGI (88.0%). It supports a 300K token context window for handling large documents. The model is available through 1 API provider. As a multimodal model, it can process and understand text, images, and other input formats seamlessly. Released in 2025, it represents OpenAI's latest advancement in AI technology.
8 months newer
Grok-2
xAI
2024-08-13
o3
OpenAI
2025-04-16
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 27 common benchmarks
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Grok-2
Average Score:22.7%
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o3
Average Score:55.0%(+32.3%)
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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:22.7%
Providers:1
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o3
Avg Score:55.0%(+32.3%)
Providers:1