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GPT-5 Nano API pricing
As of October 16, 2026, GPT-5 Nano costs $0.05 per million input tokens and $0.40 per million output tokens on the OpenAI API. Cached input is $0.0050 per million. OpenAI plans to retire it on December 11, 2026.
Retires Dec 11
It is the cheapest of 36 OpenAI models tracked here, by blended price. The closest Budget-tier model from another provider is Ministral 3 8B (Mistral) at $0.15 / $0.15; GPT-5 Nano is 8% cheaper. First listed in the LiteLLM price data on August 7, 2025.
Input / 1M tokens$0.05
Output / 1M tokens$0.40
Context window272K
Max output128K
Every published rate
| Rate | Per 1M tokens |
|---|---|
| Input (standard) | $0.05 |
| Output (standard) | $0.40 |
| Cached input (read) | $0.0050 |
| Batch input | $0.025 |
| Batch output | $0.20 |
What it costs in practice
| Task | Tokens | Per request | Per 1,000 requests |
|---|---|---|---|
| Chatbot reply | 1,000 in / 500 out | $0.00025 | $0.25 |
| Summarize a long document | 20,000 in / 1,000 out | $0.0014 | $1.40 |
| Coding agent step | 50,000 in / 2,000 out | $0.0033 | $3.30 |
Standard rates, no caching or batch discount. Compare your own numbers across all models →
Price history
| Date | Model | Change |
|---|---|---|
| 2026-01-14 | GPT-5 Nano | Context window: 400K → 272K (-32%) source |
| 2026-01-13 | GPT-5 Nano | Context window: 272K → 400K (+47%) source |
| 2025-09-27 | GPT-5 Nano | Context window: 400K → 272K (-32%) source |
| 2025-08-07 | GPT-5 Nano | New model listed: $0.05 in / $0.4 out source |
Dates are when each change first appeared in the LiteLLM price data, usually within days of the provider's announcement.
Details
| Provider | OpenAI |
| Price tier | Budget |
| Features | Vision, Reasoning, Prompt caching, Tool use, PDF input, Web search |
| API model names | gpt-5-nano, gpt-5-nano-2025-08-07 |
| Retirement date | December 11, 2026 |
| Official pricing | developers.openai.com |
Models at a similar price
| Model | Input / 1M | Output / 1M |
|---|---|---|
| Ministral 3 3B | $0.10 | $0.10 |
| Ministral 3 8B | $0.15 | $0.15 |
| DeepSeek Coder | $0.14 | $0.28 |
| Gemini 2.5 Flash Lite | $0.10 | $0.40 |
| GPT-4.1 Nano | $0.10 | $0.40 |
| Voxtral Small | $0.10 | $0.40 |
Other OpenAI models
| Model | Input / 1M | Output / 1M |
|---|---|---|
| GPT-4 | $30.00 | $60.00 |
| GPT-5.6 Cyber | $12.50 | $75.00 |
| GPT-5.5 Cyber | $12.50 | $75.00 |
| o1 | $15.00 | $60.00 |
| GPT-6 Astra | $10.00 | $50.00 |
| GPT-4 Preview | $10.00 | $30.00 |
| GPT-4 Turbo | $10.00 | $30.00 |
| GPT-5.5 | $5.00 | $30.00 |
| GPT-Rosalind Research | $5.00 | $25.00 |
| GPT-Rosalind Discovery | $5.00 | $25.00 |
| GPT-5.6 | $4.00 | $20.00 |
| GPT-5.6 Sol | $4.00 | $20.00 |
| GPT-5.4 | $2.50 | $15.00 |
| GPT-5.2 | $1.75 | $14.00 |
| GPT-5.6 Terra | $2.00 | $12.00 |
| GPT-4o | $2.50 | $10.00 |
| GPT-6 Sol | $2.00 | $10.00 |
| GPT-6.1 Sol | $2.00 | $10.00 |
| GPT-4.1 | $2.00 | $8.00 |
| o3 | $2.00 | $8.00 |
| GPT-5 | $1.25 | $10.00 |
| GPT-5.1 | $1.25 | $10.00 |
| GPT-5 Search API | $1.25 | $10.00 |
| GPT-3.5 Turbo 16K | $3.00 | $4.00 |
| o3 Mini | $1.10 | $4.40 |
| o4 Mini | $1.10 | $4.40 |
| GPT-5.4 Mini | $0.75 | $4.50 |
| GPT-3.5 Turbo | $0.50 | $1.50 |
| GPT-4.1 Mini | $0.40 | $1.60 |
| GPT-5 Mini | $0.25 | $2.00 |
| GPT-5.4 Nano | $0.20 | $1.25 |
| GPT-5.6 Luna | $0.20 | $1.20 |
| GPT-4o Mini | $0.15 | $0.60 |
| GPT-6 Luna | $0.10 | $0.50 |
| GPT-4.1 Nano | $0.10 | $0.40 |