GPT-4.1 API pricing
GPT-4.1 costs $2 per million input tokens and $8 per million output tokens. A typical chatbot request (about 1,500 input + 400 output tokens) costs $0.0062, or $6.20 per 1,000 requests.
0 characters0 words0 tokens (GPT o200k)
| Model | Per month |
|---|---|
| GPT-4.1 |
≈ = estimated token count: only OpenAI publishes its tokenizer. Claude counts use Anthropic’s published ratios; use the count_tokens API for an exact number.
GPT-4.1 price per million tokens
USD, OpenAI standard tier. Prices checked on October 28, 2026.
| Token type | Price per 1M | With Batch API |
|---|---|---|
| Input | $2 | $1 |
| Cached input | $0.5 | $0.25 |
| Output | $8 | $4 |
Model ID: gpt-4.1 · Source: developers.openai.com
What a GPT-4.1 request costs
| Request | Per request | Per 1,000 |
|---|---|---|
| Short chat reply 500 input + 200 output tokens | $0.0026 | $2.60 |
| Chatbot turn with context 1,500 input + 400 output tokens | $0.0062 | $6.20 |
| Document Q&A (RAG) 8,000 input + 500 output tokens | $0.02 | $20.00 |
| Long-document summary 150,000 input + 2,000 output tokens | $0.32 | $316 |
Token counts are measured with GPT's o200k tokenizer and converted for GPT-4.1 (see below). No caching or batch discount.
Similarly priced models
| Model | Chatbot request | vs GPT-4.1 |
|---|---|---|
| Grok 4.7 xAI | $0.0056 | −10% |
| Grok 4.6 xAI | $0.0056 | −10% |
| Grok 4.5 xAI | $0.0056 | −10% |
| Gemini 2.5 Pro Google | $0.0060 | −4% |
| o3 OpenAI | $0.0062 | same |
| GPT-6.1 Sol OpenAI | $0.0070 | +13% |
Frequently asked questions
How much does the GPT-4.1 API cost?
GPT-4.1 costs $2 per million input tokens and $8 per million output tokens on OpenAI's standard tier. Prices checked on October 28, 2026.
How much does one GPT-4.1 request cost?
A typical chatbot request with about 1,500 input and 400 output tokens costs about $0.0062, or $6.20 per 1,000 requests. Paste your own prompt into the calculator on this page for an exact estimate.
Does GPT-4.1 support prompt caching?
Yes. Cached input costs $0.5 per million tokens, 75% less than regular input.
Does GPT-4.1 have a Batch API discount?
Yes: 50% off for requests sent through the Batch API, which may take up to 24 hours. That makes it $1 / $4 per million input / output tokens.
How are GPT-4.1 tokens counted?
GPT-4.1 uses OpenAI's public o200k tokenizer, so its token counts here are exact.