Models/OpenAI/GPT-5 Nano

GPT-5 Nano

GPT-5-Nano is the smallest and fastest variant in the GPT-5 system, optimized for developer tools, rapid interactions, and ultra-low latency environments. While limited in reasoning depth compared to its larger...

01

Identity

400,000Context in
128,000Context out
2025-08-07 (OpenRouter created 1754587402)Released
ProprietaryWeights
Canonical name
GPT-5 Nano
Aliases
openai/gpt-5-nano
Continuum hosted id
Not listed as a Continuum hosted id
OpenRouter slug
openai/gpt-5-nano
Hugging Face
None (closed or unpublished)
Modalities
text, image, file
Closed weights Not on Continuum host list Closed

Context window on the 2026-08-19 OpenRouter row: 400,000 tokens.

Max completion tokens on that row: 128,000.

Input / output on that row: $0.05 / $0.40 per 1M tokens.

Architecture fields: text+image+file->text · GPT.

No hugging_face_id on the 2026-08-19 OpenRouter row.

02

Should I use this for coding agents

GPT-5-Nano is the smallest and fastest variant in the GPT-5 system, optimized for developer tools, rapid interactions, and ultra-low latency environments.

When you want the 2025-08-07 catalog SKU, not a later rename.

DeepSWE

No official DeepSWE mini-swe-agent row for this identity on the public board we fetched.

omitted, not invented as of 2026-08-13 source
Artificial Analysispublished integer
20
bench
Artificial Analysis
version
Intelligence Index
harness
published integer
effort
high
metric
Intelligence Index
value
20
independent as of 2026-08-19 source
Vals Index

We did not open a vals.ai card for this identity. Chip omitted.

omitted, not invented as of 2026-08-19 source

Ranked view: Best coding models: the independent leaderboard puts this row and every other card that carries an independent coding score on one board, with the confidence intervals left visible.

Named benches, printed only

Copied from AA or vals HTML we opened. 0.0% placeholder bars are omitted. Do not average these into the hero tiles, and do not invent CI, $/task, or steps for Artificial Analysis.

BenchPrintedNoteSourceURLAs of
SciCode 36.6% Printed on the AA Intelligence Evaluations grid for GPT-5 nano (high). Not a DeepSWE chip. Tile effort: high. Artificial Analysis GPT-5 nano (high) source 2026-08-19
Humanity's Last Exam 9.5% Printed on the AA Intelligence Evaluations grid for GPT-5 nano (high). Not a DeepSWE chip. Tile effort: high. Artificial Analysis GPT-5 nano (high) source 2026-08-19
GPQA Diamond 67.6% Printed on the AA Intelligence Evaluations grid for GPT-5 nano (high). Not a DeepSWE chip. Tile effort: high. Artificial Analysis GPT-5 nano (high) source 2026-08-19
AA-Omniscience Accuracy 19.1% Printed on the AA Intelligence Evaluations grid for GPT-5 nano (high). Not a DeepSWE chip. Tile effort: high. Artificial Analysis GPT-5 nano (high) source 2026-08-19
AA-LCR 43.7% Printed on the AA Intelligence Evaluations grid for GPT-5 nano (high). Not a DeepSWE chip. Tile effort: high. Artificial Analysis GPT-5 nano (high) source 2026-08-19
03

When not to use it

Trust this before you buy

  • When you need a Continuum-hosted SKU from this lab, use the hosted card on this hub instead of this catalog row.
  • $0.05 in / $0.40 out per 1M on the 2026-08-19 OpenRouter row. Context 400,000 in / 128,000 out.
  • Need a denser published sibling on this hub? GPT-5.6 Luna is the card already on the cluster.

Plus is $25/mo with $25 weekly hosted usage. The Mac app stays free with your own keys. Get Plus is not Download for Mac.

04

Artifact

Weights

Closed API SKU. The 2026-08-19 OpenRouter row lists pricing and context; there is no official Hugging Face weight dump on that row.

What you can open

Lab card and OpenRouter listing only. No Hugging Face Files button, because there is no official repo to point at.

Fetched OpenRouter catalog on 2026-08-19. hugging_face_id was empty.

05

Continuum serving

OpenRouter slug openai/gpt-5-nano on the 2026-08-19 catalog.

First party: https://platform.openai.com/docs/models.

Not on the Continuum host list fetched 2026-08-19.

Continuum hosted id not on the host list

We list first-party and OpenRouter, plus Continuum only when the live public allowlist named the id. This is not a 15-host routing table.

06

Economics

OpenRouter 2026-08-19: $0.05 in / $0.40 out per 1M tokens. Context 400,000 in / 128,000 out.

No separate internal-reasoning price on that row.

Price this model Opens the pricing calculator preloaded with GPT-5 Nano.
07

Provenance

ClaimSourceAs of
OpenRouter id openai/gpt-5-nano; context 400000; created 1754587402; $0.05 / $0.40 per 1MOpenRouter /api/v1/models2026-08-19
AA Intelligence Index 20 (high); 5 printed Index benchesArtificial Analysis model page2026-08-19
OpenRouter id openai/gpt-5-nano, context 400,000OpenRouter /api/v1/models2026-08-19
08

Compare, FAQ, and Get Plus

No other card in this cluster shares a published DeepSWE official row we can put next to this one. We will not compare on vendor-blog numbers.

Continue through OpenAI's model family with o3 Pro.

FAQ

Why does the lab blog disagree with DeepSWE or Scale?

Lab posts pick a harness, an effort, a split, and sometimes a private eval set. DeepSWE publishes the official mini-swe-agent row with cost, tokens, and steps. Scale SWE-bench Pro only counts when the public shared-harness board has a row we can fetch. A higher lab number is usually a different test, not a better one.

OpenAI-compatible call

No Continuum hosted id is verified for this model, so this page does not invent a curl target. Use the first-party API or the OpenRouter slug openai/gpt-5-nano.

Plus is $25/mo with $25 weekly hosted usage. The Mac app stays free with your own keys. Get Plus is not Download for Mac.