Gpt Oss 120b API
Run gpt-oss-120b through FastInfra's OpenAI-compatible API.
Pay per token, no subscription, routed to the cheapest available provider.
Gpt Oss 120b pricing
Billed per token used. Prices sync automatically from wholesale providers.
| Direction | Price per 1M tokens |
|---|---|
| Input | $0.03 |
| Output | $0.18 |
Served by 7 providers
Requests route to OpenRouter by default (cheapest).
Pin a specific provider with the :provider suffix.
| Provider | Upstream model ID |
|---|---|
| openrouter | openai/gpt-oss-120b |
| fireworks | accounts/fireworks/models/gpt-oss-120b |
| together | openai/gpt-oss-120b |
| deepinfra | openai/gpt-oss-120b |
| cerebras | gpt-oss-120b |
| sambanova | gpt-oss-120b |
| siliconflow | openai/gpt-oss-120b |
Call Gpt Oss 120b in 30 seconds
Works with any OpenAI SDK — change the base URL and API key only.
Python
from openai import OpenAI
client = OpenAI(api_key="YOUR_API_KEY", base_url="https://api.fastinfra.ai/v1")
response = client.chat.completions.create(
model="gpt-oss-120b",
messages=[{"role": "user", "content": "Hello!"}]
)
print(response.choices[0].message.content)curl
curl https://api.fastinfra.ai/v1/chat/completions \
-H "Authorization: Bearer YOUR_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "gpt-oss-120b",
"messages": [{"role": "user", "content": "Hello!"}]
}'Gpt Oss 120b — common questions
How much does the gpt-oss-120b API cost?
On FastInfra, gpt-oss-120b costs $0.0315/1M input, $0.1785/1M output tokens. Billing is per token used, with no subscription.
Is gpt-oss-120b compatible with the OpenAI SDK?
Yes. FastInfra exposes gpt-oss-120b through an OpenAI-compatible endpoint at https://api.fastinfra.ai/v1 — point any OpenAI SDK at that base URL with a FastInfra API key and keep your existing code.
Which providers serve gpt-oss-120b?
gpt-oss-120b is available from 7 provider(s): openrouter, fireworks, together, deepinfra, cerebras, sambanova, siliconflow. Requests route to OpenRouter by default (cheapest); append ":provider" to the model ID to pin one.
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