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GPT-5 vs Grok 3 mini
Comprehensive side-by-side LLM comparison
GPT-5 leads with 18.4% higher average benchmark score. GPT-5 offers 285.3K more tokens in context window than Grok 3 mini. Grok 3 mini is $149.20 cheaper per million tokens. GPT-5 supports multimodal inputs. Overall, GPT-5 is the stronger choice for coding tasks.
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OpenAI
GPT-5, released by OpenAI on August 7, 2025, is a large language model that combines direct generation and extended reasoning in a single unified system with a built-in routing mechanism. It features a 400K token context window, 128K maximum output tokens, native multimodal support (text, image, audio, video), and demonstrated strong results across coding, mathematics, visual understanding, and health benchmarks at release. GPT-5 targets complex multi-step tasks including advanced coding, mathematical problem solving, and long-context analysis.
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xAI
Grok 3 mini, released by xAI alongside Grok 3 in February 2025, is a compact reasoning model from the Grok 3 family featuring RL-enhanced Think mode for extended chain-of-thought processing. It features a 131K token context window and targets STEM tasks, mathematics, and coding applications where cost-efficient reasoning with configurable depth is required.
5 months newer
Grok 3 mini
xAI
2025-02-17
GPT-5
OpenAI
2025-08-07
Pricing Comparison
Cost per million tokens (USD)
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GPT-5
Input:$30.00
Output:$120.00
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Grok 3 mini
Input:$0.30
Output:$0.50($149.20 cheaper)
Performance Metrics
Context window and performance specifications
Average performance across 1 common benchmarks
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GPT-5
Average Score:20.1%(+18.4%)
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Grok 3 mini
Average Score:1.7%
Performance comparison across key benchmark categories
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GPT-5
Agents20.1%(+18.4%)
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Grok 3 mini
Agents1.7%
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Knowledge Cutoff
Training data recency comparison
GPT-5
2025-05
More recent knowledge cutoff means awareness of newer technologies and frameworks
Provider Availability & Performance
Available providers and their performance metrics
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GPT-5
1 providers
OpenAI
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Grok 3 mini
1 providers
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GPT-5
Avg Score:20.1%(+18.4%)
Providers:1
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Grok 3 mini
Avg Score:1.7%
Providers:1