Clinical Benchmarks

GPT-5 nano

Released 7 Aug 2025$0.05 input, $0.4 output per million tokens400K contextproprietaryAlso written as gpt-5-nano-2025-08-07, openai/gpt-5-nano-2025-08-07, GPT 5 NanoCompare with other models

Clinical Benchmarks Index
42.1rank 93 of 148; 51.6 × 0.816 = 42.1, from 2 of 10 boards
Boards
2 of 13
Results
2
Latest measurement
Sep 2026

Results

Each line is placed on its own board. Dark tick: the board leader.

Documentation and coding

  1. MedScribe (Vals AI)
    model ID openai/gpt-5-nano-2025-08-07; max_output_tokens=30000; reasoning_effort=high
    72.86
    Rank 81 of 105Leader Claude Opus 5.5 91.43
    Official leaderboard
    Measured Sep 2026
  2. MedCode (Vals AI)
    model ID openai/gpt-5-nano-2025-08-07; reasoning_effort=high; max_output_tokens=30000
    30.44
    Rank 92 of 103Leader Claude Opus 5 63.57
    Official leaderboard
    Measured Sep 2026

Sources

Open a line for the quote and page.

  1. 81MedScribe (Vals AI) model ID openai/gpt-5-nano-2025-08-07; max_output_tokens=30000; reasoning_effor… 72.86
    Printed as 72.86%Official leaderboard, measured Sep 2026Configuration: model ID openai/gpt-5-nano-2025-08-07; max_output_tokens=30000; reasoning_effort=high
    Vals AI MedScribe leaderboard official leaderboard, Vals AI, 3 Sep 2026. Vals AI MedScribe leaderboard, View: All Models, Task: Overall, row 81 of 105 (GPT 5 Nano), Accuracy column; Updated 9/29/2026. Rendered BenchmarkView table; configuration from embedded astro-island BenchmarkView props, benchmarkView.default.tasks.overall["openai/gpt-5-nano-2025-08-07"].
    81 | GPT 5 Nano | 72.86%±1.89 | $0.05/$0.4 | 112.91s
    Every result from this document
  2. 92MedCode (Vals AI) model ID openai/gpt-5-nano-2025-08-07; reasoning_effort=high; max_output_tokens… 30.44
    Printed as 30.44%Official leaderboard, measured Sep 2026Configuration: model ID openai/gpt-5-nano-2025-08-07; reasoning_effort=high; max_output_tokens=30000
    Vals AI MedCode leaderboard official leaderboard, Vals AI, 29 Sep 2026. MedCode leaderboard, Overall task, All Models expanded, rank 92 of 103; Accuracy column; board Updated 9/29/2026. Rendered table row; configuration from embedded BenchmarkView props benchmarkView.default.tasks.overall["openai/gpt-5-nano-2025-08-07"].
    92 | GPT 5 Nano | 30.44%±1.95 | $0.05/$0.4 | 29.74s
    Every result from this document

Other OpenAI models: GPT-4.1, GPT-4.1 mini, GPT-4o, GPT-5, GPT-5.1, GPT-5.2, GPT-5.3-Codex, GPT-5.4, GPT-5.4 mini, GPT-5.4 nano, GPT-5.5, GPT-5.5 Instant, GPT-5.6 Luna, GPT-5.6 Sol, GPT-5.6 Terra, GPT-5 mini, GPT-6.1 Sol, GPT-6 Astra, GPT-6 Luna, GPT-6 Sol, GPT OSS 120B, GPT OSS 20B, o3, o4-mini