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Grok 3 vs o3
Comprehensive side-by-side LLM comparison
Grok 3 offers 716.4K more tokens in context window than o3. Grok 3 is $32.00 cheaper per million tokens. Both models have their strengths depending on your specific coding needs.
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xAI
Grok 3, released by xAI in February 2025, is a large language model trained on xAI's Colossus supercluster with substantially increased compute over previous generations. It features a 1M token context window, RL-enhanced Think mode for extended reasoning, and demonstrated strong results on mathematics, coding, and scientific benchmarks. Grok 3 targets complex reasoning, real-time information tasks via X platform integration, and agentic workflows via the xAI API.
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OpenAI
OpenAI o3, released by OpenAI in April 2025, is a large reasoning model that applies extended chain-of-thought processing to deliver improved performance on complex math, science, and coding tasks. It features a 200K token context window and native image understanding, with demonstrated strong results on mathematics and software engineering benchmarks. o3 targets demanding analytical and engineering tasks where deliberate, multi-step reasoning produces significantly better outcomes than direct generation.
1 month newer
Grok 3
xAI
2025-02-17
o3
OpenAI
2025-04-16
Pricing Comparison
Cost per million tokens (USD)
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Grok 3
Input:$3.00
Output:$15.00($32.00 cheaper)
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o3
Input:$10.00
Output:$40.00
Performance Metrics
Context window and performance specifications
Average performance across 1 common benchmarks
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Grok 3
Average Score:-1.0%
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o3
Average Score:76.4%(+77.4%)
Provider Availability & Performance
Available providers and their performance metrics
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Grok 3
1 providers
xAI
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o3
1 providers
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Grok 3
Avg Score:-1.0%
Providers:1
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o3
Avg Score:76.4%(+77.4%)
Providers:1