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GPT-4.1 nano vs GPT-5
Comprehensive side-by-side LLM comparison
GPT-5 leads with 21.3% higher average benchmark score. GPT-4.1 nano offers 647.6K more tokens in context window than GPT-5. GPT-4.1 nano is $149.50 cheaper per million tokens. Overall, GPT-5 is the stronger choice for coding tasks.
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OpenAI
GPT-4.1 nano is OpenAI's smallest member of the GPT-4.1 family, released in April 2025 alongside GPT-4.1 and GPT-4.1 mini as the latency-optimized, cost-minimized option for high-throughput applications. Positioned below GPT-4.1 mini in both size and cost, it was designed for use cases where speed and affordability dominate over raw capability — including tool calling, intent classification, short-form instruction following, and retrieval-augmented lookup tasks. Unlike its larger siblings, it supports fine-tuning, making it a practical candidate for task-specific customization at scale without incurring the cost of fine-tuning larger models.
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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.
3 months newer
GPT-4.1 nano
OpenAI
2025-04-14
GPT-5
OpenAI
2025-08-07
Pricing Comparison
Cost per million tokens (USD)
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GPT-4.1 nano
Input:$0.10
Output:$0.40($149.50 cheaper)
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GPT-5
Input:$30.00
Output:$120.00
Performance Metrics
Context window and performance specifications
Average performance across 1 common benchmarks
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GPT-4.1 nano
Average Score:66.0%
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GPT-5
Average Score:87.3%(+21.3%)
Performance comparison across key benchmark categories
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GPT-4.1 nano
Science66.0%
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GPT-5
Science87.3%(+21.3%)
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Knowledge Cutoff
Training data recency comparison
GPT-4.1 nano
2024-06
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-4.1 nano
1 providers
OpenAI
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GPT-5
1 providers
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GPT-4.1 nano
Avg Score:66.0%
Providers:1
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GPT-5
Avg Score:87.3%(+21.3%)
Providers:1