GPT API pricing, every OpenAI model per million tokens
On 10 October 2026, OpenAI models on this list cost from $0.018 per million input tokens (gpt-oss-20b) to $150.00 (o1-pro), and from $0.09 per million output tokens (gpt-oss-20b) to $600.00 (o1-pro).
| Model | Input | Output | Cached input | Batch in / out | Context | Your month | Listed |
|---|---|---|---|---|---|---|---|
| GPT-6.1 Sol Pro | $2.00 | $10.00 | $0.10 | $1.00 / $5.00 | 1.05M | $270.00 | 2026-09-29 |
| GPT-6.1 Sol | $2.00 | $10.00 | $0.10 | $1.00 / $5.00 | 1.05M | $270.00 | 2026-09-29 |
| GPT-6 Luna Pro | $0.10 | $0.50 | $0.01 | $0.05 / $0.25 | 1.05M | $13.50 | 2026-09-22 |
| GPT-6 Luna | $0.10 | $0.50 | $0.01 | $0.05 / $0.25 | 1.05M | $13.50 | 2026-09-22 |
| GPT-6 Sol Pro | $2.00 | $10.00 | $0.20 | $1.00 / $5.00 | 1.05M | $270.00 | 2026-09-22 |
| GPT-6 Sol | $2.00 | $10.00 | $0.20 | $1.00 / $5.00 | 1.05M | $270.00 | 2026-09-22 |
| GPT-6 Astra | $10.00 | $50.00 | $1.00 | $5.00 / $25.00 | 1.05M | $1,350.00 | 2026-09-04 |
| GPT-6 Astra Pro | $10.00 | $50.00 | $1.00 | $5.00 / $25.00 | 1.05M | $1,350.00 | 2026-09-04 |
| GPT-5.6 Luna Pro | $0.20 | $1.20 | $0.02 | $0.10 / $0.60 | 1.05M | $30.00 | 2026-07-09 |
| GPT-5.6 Luna | $0.20 | $1.20 | $0.02 | $0.10 / $0.60 | 1.05M | $30.00 | 2026-07-09 |
| GPT-5.6 Terra Pro | $2.00 | $12.00 | $0.20 | $1.00 / $6.00 | 1.05M | $300.00 | 2026-07-09 |
| GPT-5.6 Terra | $2.00 | $12.00 | $0.20 | $1.00 / $6.00 | 1.05M | $300.00 | 2026-07-09 |
| GPT-5.6 Sol Pro promotional price, regular $4.00 in and $20.00 out | $2.00 | $10.00 | $0.20 | $1.00 / $5.00 | 1.05M | $270.00 | 2026-07-09 |
| GPT-5.6 Sol promotional price, regular $4.00 in and $20.00 out | $2.00 | $10.00 | $0.20 | $1.00 / $5.00 | 1.05M | $270.00 | 2026-07-09 |
| GPT Chat Latest | $5.00 | $30.00 | $0.50 | 400K | $750.00 | 2026-05-05 | |
| GPT-5.5 Pro | $30.00 | $180.00 | $15.00 / $90.00 | 1.05M | $4,500.00 | 2026-04-24 | |
| GPT-5.5 | $5.00 | $30.00 | $0.50 | $2.50 / $15.00 | 1.05M | $750.00 | 2026-04-24 |
| GPT-5.4 Image 2 | $8.00 | $15.00 | $2.00 | 272K | $705.00 | 2026-04-21 | |
| GPT-5.4 Nano | $0.20 | $1.25 | $0.02 | $0.10 / $0.625 | 400K | $30.75 | 2026-03-17 |
| GPT-5.4 Mini | $0.75 | $4.50 | $0.075 | $0.375 / $2.25 | 400K | $112.50 | 2026-03-17 |
| GPT-5.4 Pro | $30.00 | $180.00 | $15.00 / $90.00 | 1.05M | $4,500.00 | 2026-03-05 | |
| GPT-5.4 | $2.50 | $15.00 | $0.25 | $1.25 / $7.50 | 1.05M | $375.00 | 2026-03-05 |
| GPT-5.3-Codex | $1.75 | $14.00 | $0.175 | 400K | $315.00 | 2026-02-24 | |
| GPT Audio | $2.50 | $10.00 | 128K | $300.00 | 2026-01-19 | ||
| GPT Audio Mini | $0.60 | $2.40 | 128K | $72.00 | 2026-01-19 | ||
| GPT-5.2-Codex served by Azure | $1.75 | $14.00 | $0.175 | 400K | $315.00 | 2026-01-14 | |
| GPT-5.2 Chat served by Azure | $1.75 | $14.00 | $0.175 | 128K | $315.00 | 2025-12-10 | |
| GPT-5.2 Pro | $21.00 | $168.00 | $10.50 / $84.00 | 400K | $3,780.00 | 2025-12-10 | |
| GPT-5.2 | $1.75 | $14.00 | $0.175 | $0.875 / $7.00 | 400K | $315.00 | 2025-12-10 |
| GPT-5.1-Codex-Max served by Azure | $1.25 | $10.00 | $0.125 | 400K | $225.00 | 2025-12-04 | |
| GPT-5.1 | $1.25 | $10.00 | $0.125 | $0.625 / $5.00 | 400K | $225.00 | 2025-11-13 |
| GPT-5.1-Codex served by Azure | $1.25 | $10.00 | $0.13 | 400K | $225.00 | 2025-11-13 | |
| GPT-5.1-Codex-Mini served by Azure | $0.25 | $2.00 | $0.03 | 400K | $45.00 | 2025-11-13 | |
| gpt-oss-safeguard-20b served by Groq | $0.075 | $0.30 | $0.0375 | 131K | $9.00 | 2025-10-29 | |
| GPT-5 Image Mini | $2.50 | $2.00 | $0.25 | 400K | $180.00 | 2025-10-16 | |
| GPT-5 Image | $10.00 | $10.00 | $1.25 | 400K | $750.00 | 2025-10-14 | |
| GPT-5 Pro | $15.00 | $120.00 | $7.50 / $60.00 | 400K | $2,700.00 | 2025-10-06 | |
| GPT-5 | $1.25 | $10.00 | $0.125 | $0.625 / $5.00 | 400K | $225.00 | 2025-08-07 |
| GPT-5 Mini | $0.25 | $2.00 | $0.025 | $0.125 / $1.00 | 400K | $45.00 | 2025-08-07 |
| GPT-5 Nano | $0.05 | $0.40 | $0.005 | $0.025 / $0.20 | 400K | $9.00 | 2025-08-07 |
| gpt-oss-120b Venice, cheapest of 21 hosts | $0.03 | $0.15 | $0.03 | $0.0296 / $0.136 | 131K | $4.05 | 2025-08-05 |
| gpt-oss-20b Darkbloom, cheapest of 10 hosts | $0.018 | $0.09 | $0.009 | $0.024 / $0.112 | 131K | $2.43 | 2025-08-05 |
| o3 Pro | $20.00 | $80.00 | 200K | $2,400.00 | 2025-06-10 | ||
| o4 Mini High | $1.10 | $4.40 | $0.275 | 200K | $132.00 | 2025-04-16 | |
| o3 | $2.00 | $8.00 | $0.50 | $1.00 / $4.00 | 200K | $240.00 | 2025-04-16 |
| o4 Mini | $1.10 | $4.40 | $0.275 | $0.55 / $2.20 | 200K | $132.00 | 2025-04-16 |
| GPT-4.1 | $2.00 | $8.00 | $0.50 | $1.00 / $4.00 | 1.05M | $240.00 | 2025-04-14 |
| GPT-4.1 Mini | $0.40 | $1.60 | $0.10 | $0.20 / $0.80 | 1.05M | $48.00 | 2025-04-14 |
| GPT-4.1 Nano | $0.10 | $0.40 | $0.025 | $0.05 / $0.20 | 1.05M | $12.00 | 2025-04-14 |
| o1-pro | $150.00 | $600.00 | 200K | $18,000.00 | 2025-03-19 | ||
| o3 Mini High | $1.10 | $4.40 | $0.55 | 200K | $132.00 | 2025-02-12 | |
| o3 Mini | $1.10 | $4.40 | $0.55 | $0.55 / $2.20 | 200K | $132.00 | 2025-01-31 |
| o1 | $15.00 | $60.00 | $7.50 | 200K | $1,800.00 | 2024-12-17 | |
| GPT-4o (2024-11-20) | $2.50 | $10.00 | $1.25 | 128K | $300.00 | 2024-11-20 | |
| GPT-4o (2024-08-06) | $2.50 | $10.00 | $1.25 | 128K | $300.00 | 2024-08-06 | |
| GPT-4o-mini | $0.15 | $0.60 | $0.075 | $0.075 / $0.30 | 128K | $18.00 | 2024-07-18 |
| GPT-4o-mini (2024-07-18) | $0.15 | $0.60 | $0.075 | 128K | $18.00 | 2024-07-18 | |
| GPT-4o | $2.50 | $10.00 | $1.25 | $1.25 / $5.00 | 128K | $300.00 | 2024-05-13 |
| GPT-4o (2024-05-13) | $5.00 | $15.00 | 128K | $525.00 | 2024-05-13 | ||
| GPT-4 Turbo | $10.00 | $30.00 | $5.00 / $15.00 | 128K | $1,050.00 | 2024-04-09 | |
| GPT-3.5 Turbo (older v0613) served by Azure | $1.00 | $2.00 | 4K | $90.00 | 2024-01-25 | ||
| GPT-3.5 Turbo Instruct | $1.50 | $2.00 | 4K | $120.00 | 2023-09-28 | ||
| GPT-3.5 Turbo 16k | $3.00 | $4.00 | 16K | $240.00 | 2023-08-28 | ||
| GPT-3.5 Turbo | $0.50 | $1.50 | $0.25 / $0.75 | 16K | $52.50 | 2023-05-28 | |
| GPT-4 | $30.00 | $60.00 | 8K | $2,700.00 | 2023-05-28 |
9 of these 65 models are not served by OpenAI itself on OpenRouter, so their price is the cheapest regular price among the hosts that run them, and the host is named under the model. Compare OpenAI with every other provider
Common questions
How much does the GPT API cost?
On 10 October 2026, OpenAI models on this list cost from $0.018 per million input tokens (gpt-oss-20b) to $150.00 (o1-pro), and from $0.09 per million output tokens (gpt-oss-20b) to $600.00 (o1-pro).
What is the cheapest GPT model?
For a typical mix of three input tokens to every output token, the cheapest is gpt-oss-20b at $0.018 per million input tokens and $0.09 per million output tokens.
What is the newest GPT model on the list?
GPT-6.1 Sol Pro, listed on 29 September 2026, at $2.00 per million input tokens and $10.00 per million output tokens.
Which GPT model has the largest context window?
GPT-6.1 Sol Pro, with 1.05M tokens of context.
Does OpenAI offer batch pricing?
Yes, 39 of its models on this list show a batch price, with batch input at a median of 50 percent of the standard price. Batch suits work that can wait for its answer.
Choosing a model for a production agent
Price is one input. Quality on your own cases, latency and the cost of retries decide the rest. Tell me what you are building.