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GPT-5 vs o3-mini
Comprehensive side-by-side LLM comparison
GPT-5 leads with 23.8% higher average benchmark score. GPT-5 offers 228.0K more tokens in context window than o3-mini. o3-mini is $5.75 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 represents the next generation of OpenAI's foundational models, developed to advance the frontier of AI capabilities in reasoning, knowledge, and general intelligence. Built to push beyond the limitations of GPT-4, it incorporates architectural and training improvements designed to enhance performance across diverse tasks and domains.
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OpenAI
o3-mini was created as an efficient variant of the o3 reasoning model, designed to provide advanced thinking capabilities with reduced computational requirements. Built to make next-generation reasoning accessible to a broader range of applications, it balances analytical depth with practical speed and cost considerations.
6 months newer
o3-mini
OpenAI
2025-01-30
GPT-5
OpenAI
2025-08-07
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Pricing Comparison
Cost per million tokens (USD)
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GPT-5
Input:$1.25
Output:$10.00
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o3-mini
Input:$1.10
Output:$4.40($5.75 cheaper)
Performance Metrics
Context window and performance specifications
Average performance across 13 common benchmarks
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GPT-5
Average Score:79.3%(+23.8%)
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o3-mini
Average Score:55.5%
Performance comparison across key benchmark categories
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GPT-5
Coding74.9%(+25.6%)
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o3-mini
Coding49.3%
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Knowledge Cutoff
Training data recency comparison
o3-mini
2023-09-30
GPT-5
2024-09-30
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
2 providers
OpenAI
Throughput: 100 tok/s
Latency: 2ms
ZeroEval
Throughput: 100 tok/s
Latency: 2ms
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GPT-5
Avg Score:79.3%(+23.8%)
Providers:2
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o3-mini
Avg Score:55.5%
Providers:2