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Grok-1.5 vs o3-pro
Comprehensive side-by-side LLM comparison
o3-pro supports multimodal inputs. Both models have their strengths depending on your specific coding needs.
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xAI
Grok 1.5 was developed by xAI as an advanced language model, designed to provide helpful and accurate information with a focus on reasoning and factual knowledge. Built to serve as a conversational AI with strong analytical capabilities, it represents xAI's early generation of foundation models.
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OpenAI
o3-pro was developed as the flagship reasoning model in the o3 family, designed to deliver maximum reasoning depth and reliability for the most challenging analytical tasks. Built for professionals requiring the highest level of thoughtful problem-solving, it extends reasoning capabilities to handle complex multi-step challenges across diverse domains.
1 year newer
Grok-1.5
xAI
2024-03-28
o3-pro
OpenAI
2025-06-10
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Performance Metrics
Context window and performance specifications
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Knowledge Cutoff
Training data recency comparison
o3-pro
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-pro
1 providers
OpenAI
Throughput:
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Grok-1.5
Avg Score:0.0%
Providers:0
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o3-pro
Avg Score:0.0%
Providers:1