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OpenAI model product

GPT-5-nano

GPT-5 nano is the fastest, cheapest version of GPT-5 from OpenAI.

Updated Aug 17, 2026. Default version: GPT-5 nano

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LLMBoard Score30.3GPT-5 nano
Coverage60%5 benchmark families
Context window400KTokens
Official input price$0.05OpenAI API

On this page

  • Capability
  • Benchmarks
  • Arena
  • Pricing
  • Runtime
  • Specification
  • Versions
  • Compare
  • Similar models
  • About
  • FAQ

GPT-5-nano Capability Profile

This profile uses the model's current scored version. Arena ratings and prices are shown separately.

GPT-5 nano LLMBoard score breakdown

GPT-5-nano Benchmark Results

Benchmark scores for GPT-5 nano.

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Benchmark
Score
Rank
Participants
Percentile
Evidence
Evaluated
BenchmarkFrontierMathScore9.6%Rank14Participants17Percentile18.8%EvidenceCEvaluatedAug 17, 2026
BenchmarkHMMT 2025Score75.6%Rank26Participants33Percentile21.9%EvidenceCEvaluatedAug 17, 2026
BenchmarkAIME 2025Score85.2%Rank60Participants115Percentile48.3%EvidenceCEvaluatedAug 17, 2026
BenchmarkHumanity's Last ExamScore8.7%Rank90Participants99Percentile9.2%EvidenceCEvaluatedAug 17, 2026
BenchmarkGPQAScore71.2%Rank128Participants239Percentile46.6%EvidenceCEvaluatedAug 17, 2026

GPT-5-nano Arena Results

Preference and agent-evaluation results for the default version.

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Arena
Category
Rank
Rating / score
Votes
Observations
Result date
ArenavisionCategoryoverallRank92Rating / score1161.7Votes3,973ObservationsN/AResult dateAug 6, 2026
Arenavision style controlCategoryoverallRank98Rating / score1147.6Votes3,973ObservationsN/AResult dateAug 6, 2026
ArenatextCategoryoverallRank207Rating / score1320.3Votes8,296ObservationsN/AResult dateAug 12, 2026
Arenatext style controlCategoryoverallRank211Rating / score1337.4Votes8,296ObservationsN/AResult dateAug 12, 2026

GPT-5-nano Pricing

Official vendor API pricing appears first, followed by individual provider offers.

Official API
$0.05 input, $0.40 output per 1M
Official provider
OpenAI
Lowest third-party
From $0.05 input, $0.40 output per 1M via OrcaRouter
Tracked offerings
13
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Provider
Provider model ID
Region
Input / 1M
Output / 1M
Context
Updated
ProviderOrcaRouterProvider model IDopenai/gpt-5-nanoRegionglobalInput / 1M$0.05Output / 1M$0.40Context400KUpdatedAug 17, 2026
ProviderNanoGPTProvider model IDopenai/gpt-5-nanoRegionglobalInput / 1M$0.05Output / 1M$0.40Context400KUpdatedAug 17, 2026
ProviderImpossiblProvider model IDopenai/gpt-5-nanoRegionglobalInput / 1M$0.05Output / 1M$0.40Context400KUpdatedAug 17, 2026
ProviderOpenRouterProvider model IDopenai/gpt-5-nanoRegionglobalInput / 1M$0.05Output / 1M$0.40Context400KUpdatedAug 17, 2026
ProviderOpenAIProvider model IDgpt-5-nanoRegionglobalInput / 1M$0.05Output / 1M$0.40Context400KUpdatedAug 17, 2026
ProviderNEAR AI CloudProvider model IDopenai/gpt-5-nanoRegionglobalInput / 1M$0.05Output / 1M$0.40Context400KUpdatedAug 17, 2026
ProviderMerge GatewayProvider model IDopenai/gpt-5-nanoRegionglobalInput / 1M$0.05Output / 1M$0.40Context400KUpdatedAug 17, 2026
ProviderCloudflare AI GatewayProvider model IDopenai/gpt-5-nanoRegionglobalInput / 1M$0.05Output / 1M$0.40Context400KUpdatedAug 17, 2026
ProviderFastRouterProvider model IDopenai/gpt-5-nanoRegionglobalInput / 1M$0.05Output / 1M$0.40Context400KUpdatedAug 17, 2026
ProviderOfoxProvider model IDopenai/gpt-5-nanoRegionglobalInput / 1M$0.05Output / 1M$0.40Context400KUpdatedAug 17, 2026
ProviderVercel AI GatewayProvider model IDopenai/gpt-5-nanoRegionglobalInput / 1M$0.05Output / 1M$0.40Context400KUpdatedAug 17, 2026
ProviderEden AIProvider model IDopenai/gpt-5-nanoRegionglobalInput / 1M$0.05Output / 1M$0.40Context400KUpdatedAug 17, 2026
ProviderKilo GatewayProvider model IDopenai/gpt-5-nanoRegionglobalInput / 1M$0.05Output / 1M$0.40Context400KUpdatedAug 17, 2026

Official prices use only the vendor's configured official Provider and positive standard USD PAYG rates. Third-party offers remain explicitly labeled.

GPT-5-nano Runtime Performance

Provider-specific output speed and catalog latency for GPT-5 nano. Runtime does not affect the capability score.

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Provider
Output Speed
Catalog Latency
Max Input
Max Output
Updated
ProviderOpenAIOutput Speed500 tok/sCatalog Latency0.3 sMax Input400KMax Output128KUpdatedAug 17, 2026

Output Speed is generated output tokens received per second. Catalog latency is reported separately from observed provider TTFT.

GPT-5-nano Specifications

Technical details for the model's default version.

Version
GPT-5 nano
Released
Aug 7, 2025
Knowledge cutoff
May 30, 2024
Parameters
N/A
Context window
400K
Max output
128K
Inputs
image, text
Outputs
text
Open weights
No
License
Proprietary

GPT-5-nano Versions

Available versions of this model. The score column identifies the version used in the overall ranking.

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Version
Released
LLMBoard
Parameters
Context
Max output
Open weights
License
VersionGPT-5 nanoReleasedAug 7, 2025LLMBoard30.3ParametersN/AContext400KMax output128KOpen weightsNoLicenseProprietary

GPT-5-nano vs nearby models

Open a comparison with the three ranked models immediately above and below this model.

GPT-5-nanovsGPT-4.1GPT-5-nanovsQwen3 VL 30B A3B ThinkingGPT-5-nanovsQwen3 32BGPT-5-nanovsLlama 3.1 Nemotron Ultra 253BGPT-5-nanovsKimi k1.5GPT-5-nanovsGemini 2.0 Flash Thinking

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What is GPT-5-nano?

Key information about GPT-5-nano and its available data.

GPT-5 nano is the fastest, cheapest version of GPT-5 from OpenAI. It is well-suited for summarization and classification tasks with average reasoning capabilities and very fast speed.

Data as of 2026-08-17.

FAQ

Common questions about GPT-5-nano.

When was GPT-5-nano released?

GPT-5-nano's default version was released on Aug 7, 2025.

How much does GPT-5-nano cost?

GPT-5-nano's official API price is $0.05 per million input tokens and $0.40 per million output tokens via OpenAI. The lowest tracked third-party offer starts at $0.05 input and $0.40 output via OrcaRouter.

Who created GPT-5-nano?

GPT-5-nano was created by OpenAI.

What is the context window for GPT-5-nano?

The default version has a 400K token context window.

Is GPT-5-nano open weight?

No. The default version is not marked as having publicly available weights.

How many API providers offer GPT-5-nano?

13 provider offerings are linked to the default version.

What models should I compare GPT-5-nano with?

Nearby ranked alternatives include GPT-4.1, Qwen3 VL 30B A3B Thinking, Qwen3 32B.