GPT-4.1 API pricing
As of October 21, 2026, OpenAI GPT-4.1 costs $2.00 per million input tokens and $8.00 per million output tokens through OpenRouter, with cached input at $0.50 per million.
- Input, per million tokens$2.00
- Output, per million tokens$8.00
- Cached input, per million$0.50
- Context window1.05M tokens
- Max output33K tokens
- Output speedNot measured
What a request costs
Three fixed token mixes at the list price, without cache or batch discounts. For a whole month, use the calculator.
| Workload | Tokens | One request | 1,000 requests | Fits the context window |
|---|---|---|---|---|
| Chat turn | 1K input + 500 output tokens | $0.0060 | $6.00 | Yes |
| Repository review | 50K input + 3K output tokens | $0.124 | $124.00 | Yes |
| Agent loop | 200K input + 10K output tokens | $0.480 | $480.00 | Yes |
| Solved coding task | One SWE-bench Verified attempt, divided by the share that succeed | $0.37 | $369.66 |
Price history
We read this price every day and have since October 15, 2026. It has not changed yet; any change will be listed here with its date.
- October 15, 2026 First recorded: $2.00 input, $8.00 output
Cheaper models as good as GPT-4.1
Models within two points of GPT-4.1 or above it on the Artificial Analysis Intelligence Index, with a lower output price. Cheapest first.
- Ling 3.0 Flash$0.063 Overall 20.1 against 12.7 · 99% cheaper output
- Qwen3.5-9B$0.13 Overall 13.3 against 12.7 · 98% cheaper output
- Mercury 2.5$0.15 Overall 12.3 against 12.7 · 98% cheaper output
- Ling 3.0 Flash VL$0.18 Overall 24.6 against 12.7 · 98% cheaper output
- DeepSeek V4 Flash 0423$0.182 Overall 24.4 against 12.7 · 98% cheaper output
GPT-4.1 pricing questions
- How much does GPT-4.1 cost per million tokens?
- $2.00 per million input tokens and $8.00 per million output tokens, as listed on OpenRouter on October 21, 2026.
- Does GPT-4.1 support prompt caching?
- Yes. OpenRouter lists cached input at $0.50 per million tokens, against $2.00 for uncached input.
- Is there a cheaper model as good as GPT-4.1?
- Ling 3.0 Flash scores 20.1 on the Artificial Analysis Intelligence Index, within two points of GPT-4.1 or above it, and costs $0.063 per million output tokens.
- Has the price of GPT-4.1 changed?
- Not since we started recording it daily on October 15, 2026.