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GPT-5 nano vs Grok-3 Mini
Comprehensive side-by-side LLM comparison
Grok-3 Mini leads with 14.4% higher average benchmark score. GPT-5 nano offers 392.0K more tokens in context window than Grok-3 Mini. Both models have similar pricing. Overall, Grok-3 Mini is the stronger choice for coding tasks.
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OpenAI
GPT-5 nano is a multimodal language model developed by OpenAI. The model shows competitive results across 5 benchmarks. It excels particularly in AIME 2025 (85.2%), HMMT 2025 (75.6%), GPQA (71.2%). It supports a 528K token context window for handling large documents. The model is available through 2 API providers. 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.
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xAI
Grok-3 Mini is a multimodal language model developed by xAI. This model demonstrates exceptional performance with an average score of 87.8% across 4 benchmarks. It excels particularly in AIME 2024 (95.8%), AIME 2025 (90.8%), GPQA (84.0%). 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 2025, it represents xAI's latest advancement in AI technology.
5 months newer
Grok-3 Mini
xAI
2025-02-17
GPT-5 nano
OpenAI
2025-08-07
Pricing Comparison
Cost per million tokens (USD)
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GPT-5 nano
Input:$0.05
Output:$0.40($0.35 cheaper)
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Grok-3 Mini
Input:$0.30
Output:$0.50
Performance Metrics
Context window and performance specifications
Average performance across 7 common benchmarks
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GPT-5 nano
Average Score:35.8%
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Grok-3 Mini
Average Score:50.1%(+14.4%)
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Knowledge Cutoff
Training data recency comparison
GPT-5 nano
2024-05-30
Grok-3 Mini
2024-11-17
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 nano
2 providers
OpenAI
Throughput: 500 tok/s
Latency: 0.3ms
ZeroEval
Throughput: 500 tok/s
Latency: 0.3ms
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GPT-5 nano
Avg Score:35.8%
Providers:2
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Grok-3 Mini
Avg Score:50.1%(+14.4%)
Providers:1