OpenAI API Pricing
38 models · From $0.039/1M to $150.00/1M input
The cheapest OpenAI model to run is GPT-OSS 120B at $0.039 input and $0.190 output per 1M tokens. On a RAG answer of 8,000 tokens in and 600 out, OpenAI models range from $0.0004 (GPT-OSS 120B) to $1.56 (o1 Pro) per request. The largest context window is GPT-6 Luna at 1.1M tokens. Count tokens with the OpenAI token counter.
| Model | Input /1M | Output /1M | RAG answer |
|---|---|---|---|
| GPT-OSS 120B | $0.039 | $0.190 | $0.0004 |
| GPT-5 Nano | $0.050 | $0.400 | $0.0006 |
| GPT-OSS 20B (Bedrock) | $0.070 | $0.300 | $0.0007 |
| GPT-OSS 20B | $0.075 | $0.300 | $0.0008 |
| GPT-6 Luna | $0.100 | $0.500 | $0.0011 |
| GPT-OSS 120B (Bedrock) | $0.150 | $0.600 | $0.0016 |
| GPT-4o Mini | $0.150 | $0.600 | $0.0016 |
| GPT-5.6 Luna | $0.200 | $1.20 | $0.0023 |
| GPT-5.4 Nano | $0.200 | $1.25 | $0.0024 |
| GPT-5 Mini | $0.250 | $2.00 | $0.0032 |
| GPT-4.1 Mini | $0.400 | $1.60 | $0.0042 |
| GPT-5.4 Mini | $0.750 | $4.50 | $0.0087 |
| GPT-6.1 Terra | $1.00 | $5.00 | $0.011 |
| o4 Mini | $1.10 | $4.40 | $0.011 |
| o3 Mini | $1.10 | $4.40 | $0.011 |
| GPT-5.1 | $1.25 | $10.00 | $0.016 |
| GPT-5 | $1.25 | $10.00 | $0.016 |
| GPT-5.2 | $1.75 | $14.00 | $0.022 |
| GPT-5.3 Codex | $1.75 | $14.00 | $0.022 |
| GPT-6.1 Sol | $2.00 | $10.00 | $0.022 |
| GPT-6 Sol | $2.00 | $10.00 | $0.022 |
| GPT-5.6 Terra | $2.00 | $12.00 | $0.023 |
| GPT-4.1 | $2.00 | $8.00 | $0.021 |
| o3 | $2.00 | $8.00 | $0.021 |
| o4 Mini Deep Research | $2.00 | $8.00 | $0.021 |
| GPT-5.4 | $2.50 | $15.00 | $0.029 |
| GPT-4o | $2.50 | $10.00 | $0.026 |
| GPT-5.6 Sol | $4.00 | $20.00 | $0.044 |
| GPT-5.5 | $5.00 | $30.00 | $0.058 |
| GPT Image 2.5 | $5.00 | $30.00 | $0.058 |
| GPT Image 2 | $5.00 | $30.00 | $0.058 |
| o3 Deep Research | $10.00 | $40.00 | $0.104 |
| GPT-5.6 Cyber | $12.50 | $75.00 | $0.145 |
| o1 | $15.00 | $60.00 | $0.156 |
| o3-pro | $20.00 | $80.00 | $0.208 |
| GPT-5.5 Pro | $30.00 | $180.00 | $0.348 |
| GPT-5.4 Pro | $30.00 | $180.00 | $0.348 |
| o1 Pro | $150.00 | $600.00 | $1.56 |