OpenAI: GPT-4.1 Nano
by OpenAIOpenAI: GPT-4.1 Nano is a large language model from OpenAI. It costs $0.100 per million input tokens and $0.400 per million output tokens. Its context window is 1.0M tokens.
- Input / 1M tokens
- $0.100
- Output / 1M tokens
- $0.400
- Cached input / 1M
- $0.025
- Context window
- 1.0M
On repeated prefixes
tokens
This model also charges $0.01 per search request
That is $10.00 per 1,000 requests, billed on top of the token prices above. On a typical 1,000-in / 500-out exchange the tokens cost $0.0003, so the search fee is 33× the token cost. Per-token rankings elsewhere ignore this entirely.
Who serves it cheapest
2 hosts serve GPT-4.1 Nano. Same weights, same API - the price difference is pure margin and routing.
| Provider | Input / 1M | Output / 1M | Context | Throughput | Uptime 24h |
|---|---|---|---|---|---|
| AzureCheapest | $0.100 | $0.400 | 1.0M | - | 99.9% |
| OpenAI | $0.100 | $0.400 | 1.0M | - | 100.0% |
The spread between Azure and OpenAI is about the same for identical weights. Quantization and context limits differ, so check both columns before switching.
Benchmarks
Independent scores published alongside the catalogue.
- Coding index
- 11.1
About GPT-4.1 Nano
For tasks that demand low latency, GPT‑4.1 nano is the fastest and cheapest model in the GPT-4.1 series. It delivers exceptional performance at a small size with its 1 million...
Specifications
| Model ID | openai/gpt-4.1-nano |
|---|---|
| Provider | OpenAI |
| Context window | 1.0M tokens |
| Max output | 33K tokens |
| Input modalities | image, text, file |
| Output modalities | text |
| Knowledge cutoff | 2024-06-30 |
| Open weights | No |
| Released | April 14, 2025 |
Cheaper alternatives
Models that cost less than GPT-4.1 Nano while keeping at least half its context window and every input modality it supports.
Frequently asked
How much does OpenAI: GPT-4.1 Nano cost?
$0.100 per million input tokens and $0.400 per million output tokens. Cached input reads cost $0.025 per million tokens.
What is the context window of OpenAI: GPT-4.1 Nano?
1.0M tokens, with up to 33K tokens of output per request.
Does OpenAI: GPT-4.1 Nano have extra fees beyond per-token pricing?
Yes. OpenAI: GPT-4.1 Nano charges $0.01 per search request - $10.00 per 1,000 requests - on top of $0.100 per million input tokens and $0.400 per million output tokens. On a typical 1,000-input / 500-output exchange the search fee alone is 33× the token cost.
Which provider serves OpenAI: GPT-4.1 Nano cheapest?
Azure at $0.100 per million input tokens - about the same cheaper than OpenAI, the most expensive of the 2 hosts serving it.
Confirm against the source: OpenAI official pricing.