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GPT-5 Nano

The fastest and lowest-cost tier of the GPT-5 family, built for high-volume, low-latency tasks such as summarization and classification.

Context
400K tokens
Max output
128K
Cutoff
Released

Hosted API price

List price via OpenAI · per 1M tokens

USD
Input
$0.05 /1M
Output
$0.40 /1M
Hosted by
OpenAI DigitalOcean Azure Replicate 4 providers

Hosted API pricing

How we price

Order

Providers are listed cheapest input rate first, then by output rate, a tie going to the creator's own listing. A provider that lists the model without a published rate sits at the end.

Prices

Base-tier, on-demand rates in USD per 1M tokens, converted at ECB reference rates where a provider publishes in another currency. Cached-input and batch rates show only where a provider publishes them. "Cheapest" marks the one provider with the lowest input and output pair; a tie wears no badge.

Cost

Input rate times the input tokens plus output rate times the output tokens, at the monthly volume set above the table. Cached-input, batch, long-context and reasoning-token billing are not modelled.

Transparency and funding

  • Affiliates: Affiliate links are marked. We may earn a commission if you click them, but commissions never affect the order.

Every provider serving GPT-5 Nano, cheapest input first. Set your monthly volume to see what each would bill.

Every provider serving GPT-5 Nano, with its price per 1M input and output tokens and what the volume above would cost
Provider Input /1M Output /1M Cached input /1M Cost at 10M in + 2M out Link
OpenAI logo OpenAI Creator $0.05 $0.40 $0.005 $1.30 Visit website
DigitalOcean logo DigitalOcean $0.05 $0.40 $0.005 $1.30 Visit website
Microsoft Azure logo Azure $0.05 $0.40 $0.005 $1.30 Visit website
Replicate logo Replicate $0.05 $0.40 $1.30 Visit website

Heads up: Base-tier, on-demand rates per 1M tokens; cached, batch and long-context tiers excluded. A provider may serve a shorter context or a quantized build than the creator's release. Verify before provisioning. More on how we price.

Similarly priced models

The models nearest GPT-5 Nano by blended rate, each at its own cheapest provider.

Models priced nearest GPT-5 Nano per 1M tokens, each at its cheapest provider
Model Blended /1M Input /1M Output /1M Context Cutoff vs GPT-5 Nano
Alibaba Cloud Qwen3-Coder-30B-A3B Alibaba Cloud $0.0917 $0.06 $0.25 262K −15%
Meta Llama 3.2 3B Meta $0.0983 $0.051 $0.335 128K Dec 2023 −9%
Alibaba Cloud Qwen3-30B-A3B FP8 Alibaba Cloud $0.0983 $0.051 $0.335 33K −9%
Mistral Ministral 3 3B Mistral $0.10 $0.10 $0.10 256K −8%
Z.AI GLM-5.3-Flash Z.AI $0.1042 $0.075 $0.25 1M −4%
OpenAI GPT-5 Nano This model OpenAI $0.1083 $0.05 $0.40 400K May 2024
Alibaba Cloud Qwen3.5-35B-A3B Alibaba Cloud $0.124 $0.057 $0.459 262K +14%
Alibaba Cloud Qwen3.6-35B-A3B Alibaba Cloud $0.1283 $0.07 $0.42 262K +18%
Google Cloud Gemma 3 27B Instruct Google Cloud $0.1333 $0.10 $0.30 128K Aug 2024 +23%
Google Cloud Gemma 4 26B A4B Google Cloud $0.1333 $0.10 $0.30 256K Jan 2025 +23%
Alibaba Cloud Qwen3-32B FP8 Alibaba Cloud $0.1333 $0.10 $0.30 33K +23%

USD per 1M tokens at each model's cheapest listed provider. Blended is the cost of 10M input plus 2M output tokens, spread over the 12M.

Capabilities

What GPT-5 Nano accepts and can do, as published by OpenAI.

  • Image Accepts images as input alongside text.
  • Text Accepts and generates natural-language text.
  • Reasoning Thinks before it answers, always on or as a switchable mode.
  • Function calling Connect to external tools, APIs, and systems.
  • Structured output Return responses in structured formats like JSON.
  • Web search Search the web for up-to-date information.
  • Code execution Write and execute code in a sandboxed environment.
  • File upload Process uploaded documents, spreadsheets, and other files.
  • MCP Connect to services via Model Context Protocol.
  • Image generation Generate and edit images from text prompts.

Common questions

What is GPT-5 Nano good for?

Summarization, classification and other high-volume tasks, at the lower-cost end of OpenAI's lineup.

When is GPT-5 Nano not a good fit?

Open-ended reasoning or agent work, which suit the larger GPT-5 tiers, and audio input, which it lacks. OpenAI recommends GPT-5.6 Luna for new speed- and cost-sensitive work and plans to shut down the API model in December 2026.

What is the cheapest way to run GPT-5 Nano?

The cheapest hosted rate is $0.05 / $0.40 per 1M tokens via OpenAI.

How does GPT-5 Nano compare with GPT-5.4 Nano?

OpenAI says GPT-5.4 Nano brings GPT-5.4-class ability to its smallest tier, aimed at classification, data extraction, ranking and coding subagents where GPT-5 Nano was pitched at summarization and classification, and adds context compaction. Same 400K-token context and text and image input. GPT-5 Nano lists at 75% less per 1M input tokens and 68% less per 1M output tokens than GPT-5.4 Nano. It came out 7 months earlier and has an older knowledge cutoff (May 2024 against August 2025).

Can I self-host GPT-5 Nano?

No. OpenAI does not publish the weights; GPT-5 Nano is available only through hosted APIs.

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