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OpenAI pricing
verified 2026-09-02Maker of the GPT family. The default choice for many production apps, with a wide spread from nano-tier workhorses to frontier reasoning models.
data residency & retention
from OpenAI's own policies · verified 2026-09-02Headquarters
🇺🇸 United States (US)
Where inference runs
US, EU, Other
In-region inference is available for US, Europe, and UAE via regional projects (e.g. eu.api.openai.com); without a regional project, processing defaults to OpenAI's global, US-centric infrastructure.
Region pinning
Yes, self-serve
Eligible API customers select a region when creating a new project in the dashboard (existing projects cannot be migrated); non-US regions require OpenAI approval for modified abuse-monitoring retention.
Prompt retention
Retained · 30 days
By default API prompts and responses are kept in abuse-monitoring logs for up to 30 days, unless longer retention is required by law.
Trains on API data
No
Since March 2023, data sent to the OpenAI API is not used to train models unless the customer explicitly opts in.
Zero data retention
Available
Zero Data Retention requires prior approval and applies only to eligible endpoints; stateful endpoints like Assistants remain ineligible. Eligible European residency projects get ZDR by default.
current models · $ per 1M tokens
| Model | Input /1M | Cached in | Output /1M | Context |
|---|---|---|---|---|
GPT-5.6 Sol GPT-5 | $4 | $0.40 | $20 | 1.1M |
GPT-5.6 Terra GPT-5 | $2 | $0.20 | $12 | 1.1M |
GPT-5.6 Luna GPT-5 | $0.20 | $0.02 | $1.20 | 1.1M |
GPT-5.5 GPT-5 | $5 | $0.50 | $30 | — |
GPT-5.5 Pro GPT-5 | $30 | — | $180 | — |
OpenAI totals · 1M in + 1M out
GPT-5.6 Luna
$1.40
GPT-5.6 Terra
$14.00
GPT-5.6 Sol
$24.00
GPT-5.5
$35.00
GPT-5.5 Pro
$210
Cost of 1M input + 1M output tokens. Bar length is square-root scaled so cheap models stay visible next to premium ones.
legacy models · still purchasable
| Model | Input /1M | Cached in | Output /1M | Context |
|---|---|---|---|---|
GPT-5.4 GPT-5 | $2.50 | $0.25 | $15 | — |
GPT-5.4 mini GPT-5 | $0.75 | $0.07 | $4.50 | — |
GPT-5.4 nano GPT-5 | $0.20 | $0.02 | $1.25 | — |
GPT-5.4 Pro GPT-5 | $30 | — | $180 | — |
GPT-5.2 GPT-5 | $1.75 | $0.17 | $14 | — |
GPT-5.2 Pro GPT-5 | $21 | — | $168 | — |
GPT-5.1 GPT-5 | $1.25 | $0.13 | $10 | 400K |
GPT-5 GPT-5 | $1.25 | $0.13 | $10 | 400K |
GPT-5 mini GPT-5 | $0.25 | $0.03 | $2 | 400K |
GPT-5 nano GPT-5 | $0.05 | $0.0050 | $0.40 | 400K |
GPT-5 Pro GPT-5 | $15 | — | $120 | 400K |
GPT-4.1 GPT-4.1 | $2 | $0.50 | $8 | 1.0M |
GPT-4.1 mini GPT-4.1 | $0.40 | $0.10 | $1.60 | 1.0M |
GPT-4.1 nano GPT-4.1 | $0.10 | $0.03 | $0.40 | 1.0M |
GPT-4o GPT-4o | $2.50 | $1.25 | $10 | 128K |
o4-mini o-series | $1.10 | $0.28 | $4.40 | 200K |
GPT-4o mini GPT-4o | $0.15 | $0.07 | $0.60 | 128K |
GPT-3.5 Turbo GPT-3.5 | $0.50 | — | $1.50 | 16K |
o3 o-series | $2 | $0.50 | $8 | 200K |
o3-mini o-series | $1.10 | $0.55 | $4.40 | 200K |
o3-pro o-series | $20 | — | $80 | 200K |
o1 o-series | $15 | $7.50 | $60 | 200K |
o1-pro o-series | $150 | — | $600 | 200K |