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
- Input
- $0.05 /1M
- Output
- $0.40 /1M
- Hosted by
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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.
| Provider | Input /1M | Output /1M | Cached input /1M | Cost at 10M in + 2M out | Link |
|---|---|---|---|---|---|
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$0.05 | $0.40 | $0.005 | $1.30 | Visit website |
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$0.05 | $0.40 | $0.005 | $1.30 | Visit website |
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$0.05 | $0.40 | $0.005 | $1.30 | Visit website |
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$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.
| Model | Blended /1M | Input /1M | Output /1M | Context | Cutoff | vs GPT-5 Nano |
|---|---|---|---|---|---|---|
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$0.0917 | $0.06 | $0.25 | 262K | −15% | |
|
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$0.0983 | $0.051 | $0.335 | 128K | Dec 2023 | −9% |
|
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$0.0983 | $0.051 | $0.335 | 33K | −9% | |
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$0.10 | $0.10 | $0.10 | 256K | −8% | |
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$0.1042 | $0.075 | $0.25 | 1M | −4% | |
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$0.1083 | $0.05 | $0.40 | 400K | May 2024 | |
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$0.124 | $0.057 | $0.459 | 262K | +14% | |
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$0.1283 | $0.07 | $0.42 | 262K | +18% | |
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$0.1333 | $0.10 | $0.30 | 128K | Aug 2024 | +23% |
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$0.1333 | $0.10 | $0.30 | 256K | Jan 2025 | +23% |
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$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.
More from OpenAI
-
GPT-4.1 Nano
1M context · cutoff Jun 2024
From $0.10 / $0.40 /1M in / out at the cheapest provider -
GPT-6 Luna
1M context · cutoff May 2026
From $0.10 / $0.50 /1M in / out at the cheapest provider -
GPT-OSS-120B
Open weights
131K context · cutoff Jun 2024
From $0.039 / $0.182 /1M in / out at the cheapest provider -
GPT-4o Mini
128K context · cutoff Oct 2023
From $0.15 / $0.60 /1M in / out at the cheapest provider -
GPT-OSS-20B
Open weights
131K context · cutoff Jun 2024
From $0.03 / $0.14 /1M in / out at the cheapest provider -
GPT-5.6 Luna
1M context · cutoff Feb 2026
From $0.20 / $1.20 /1M in / out at the cheapest provider -
GPT-5.4 Nano
400K context · cutoff Aug 2025
From $0.20 / $1.25 /1M in / out at the cheapest provider -
GPT-5 Mini
400K context · cutoff May 2024
From $0.25 / $2.00 /1M in / out at the cheapest provider