OpenAI · API pricing
GPT-OSS API pricing
GPT-OSS 120B, by OpenAI, on one OpenAI-compatible API, billed per token from a prepaid balance — no subscription. From €0.0252 per 100k input tokens and €0.1008 per 100k output tokens, margin and VAT included. It runs on EU-sovereign infrastructure.
- Models live
- 1
- Input from
- €0.0252
- per 100k tokens
- Output from
- €0.1008
- per 100k tokens
- EU sovereign
- 1/1
GPT-OSS API pricing per model
per 100k tokens · margin and VAT included · from our live catalog when this page is built
| Model | Input | Output | Cached in | Context | Max output | Jurisdiction |
|---|---|---|---|---|---|---|
GPT-OSS 120Bgpt-oss-120btools | €0.0252 | €0.1008 | — | — | — | EU sovereign |
GPT-OSS 20Bgpt-oss-20btoolstemporarily paused since 2026-10-20 | €0.0068 | €0.0252 | — | — | — | EU sovereign |
Input, output and cached input are the prices debited from your prepaid balance per 100,000 tokens, margin and VAT included. Context is the window as served on Frontière AI; max output is the provider's cap on max_tokens (— when it sets none we know of). Tool calling is measured with a real call per model.
GPT-OSS API cost calculator
Pick a model and a workload, or type your own token counts: the estimate uses the prices in the table above, margin and VAT included.
Example workload
Roughly 1,000 tokens ≈ 750 English words.
No discounted cache rate on this model: every input token is billed at the input rate.
Per request
€0.00073
Per day
€0.7308
Per month
€21.92
30 days
A €10 top-up covers about 13,683 requests · GPT-OSS 120B
Where the money goes
- Input€11.34 · 52%
- Output€10.58 · 48%
Estimate, margin and VAT included, from the prices on this page. You are billed on the tokens the provider reports for each call, debited from a prepaid balance — no subscription.
Call GPT-OSS models
The API is OpenAI-compatible: keep your SDK, change base_url and the key, and pass the model id. One key covers the whole catalog.
curl https://getfrontiereai.eu/api/v1/chat/completions \
-H "Authorization: Bearer $FRONTIERE_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "gpt-oss-120b",
"messages": [{"role": "user", "content": "Bonjour"}]
}'import os
from openai import OpenAI
client = OpenAI(
base_url="https://getfrontiereai.eu/api/v1",
api_key=os.environ["FRONTIERE_KEY"],
)
reply = client.chat.completions.create(
model="gpt-oss-120b",
messages=[{"role": "user", "content": "Bonjour"}],
)
print(reply.choices[0].message.content)import OpenAI from "openai";
const client = new OpenAI({
baseURL: "https://getfrontiereai.eu/api/v1",
apiKey: process.env.FRONTIERE_KEY,
});
const reply = await client.chat.completions.create({
model: "gpt-oss-120b",
messages: [{ role: "user", content: "Bonjour" }],
});
console.log(reply.choices[0].message.content);Frequently asked
How much does the GPT-OSS API cost?
GPT-OSS 120B costs €0.0252 per 100,000 input tokens and €0.1008 per 100,000 output tokens on Frontière AI — margin and VAT included, that is the amount debited from your prepaid balance. The calculator on this page turns it into a monthly cost for your workload.
Is the GPT-OSS API hosted in Europe on Frontière AI?
Yes: the live model is labeled EU sovereign — Scaleway (France) for GPT-OSS 120B. Your prompts transit through our gateway, hosted by Vercel in Paris (a US company), without being stored.
Is there a subscription or a minimum spend?
No subscription. You top up a prepaid balance from €10 and each call is debited at the per-token price. Calls are refused once the balance reaches zero; a call already running can take it slightly below — deducted from your next top-up.
Do I need to change my code to call GPT-OSS models?
No, if your code already uses an OpenAI SDK: point base_url at https://getfrontiereai.eu/api/v1, use a Frontière AI key and pass the model id, for example “gpt-oss-120b”. Streaming and tool calling are relayed as-is.
Other providers
Per-token prices for every publisher in our catalog
All model prices on one page →Start calling GPT-OSS in minutes
Create an account, top up €10, change two lines of code.