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Grok-1.5 vs o3
Comprehensive side-by-side LLM comparison
o3 leads with 32.5% higher average benchmark score. o3 supports multimodal inputs. Overall, o3 is the stronger choice for coding tasks.
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xAI
Grok-1.5 is a language model developed by xAI. It achieves strong performance with an average score of 63.9% across 9 benchmarks. It excels particularly in GSM8k (90.0%), DocVQA (85.6%), MMLU (81.3%). 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.
1 year newer
Grok-1.5
xAI
2024-03-28
o3
OpenAI
2025-04-16
Performance Metrics
Context window and performance specifications
Average performance across 28 common benchmarks
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Grok-1.5
Average Score:20.5%
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o3
Average Score:53.0%(+32.5%)
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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-1.5
0 providers
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o3
1 providers
OpenAI
Throughput:
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Grok-1.5
Avg Score:20.5%
Providers:0
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o3
Avg Score:53.0%(+32.5%)
Providers:1