gpt-oss-120b with Jev
gpt-oss-120b is a model from OpenAI, released 2025-08-05. It costs $0.037 per million input tokens and $0.170 per million output tokens, reads up to 131K tokens of context, and writes up to 117,964 tokens in one reply. Through llm11, set model to openai/gpt-oss-120b.
- Input price
- $0.037 / 1M
- Output price
- $0.170 / 1M
- Context window
- 131K tokens
- Max output
- 118K tokens
- Released
- 2025-08-05
- Accepts
- text
- Intelligence index
- 11.6
Artificial Analysis, via the catalogue
Read from the live catalogue and refreshed daily. At blended list price, 95% of the 332 priced models we can call cost more.
Using gpt-oss-120b with Jev
Jev is TypeSafe AI's System One model. It reads each request first and decides which model in your pool answers, with a calibrated confidence on that call. gpt-oss-120b does the answering when Jev sends it work, or when you name it yourself. gpt-oss-120b falls in the llm11-fast band, and the labs and limits it meets make it eligible for that pack. Packs keep a spread of eight models per band, and it is not one of the eight today, so it is only picked when you name it in a custom pool.
Jev is new, so we have not published results for gpt-oss-120b with and without it, and this page does not invent any. Every response comes with a receipt that names the model that answered and what it cost against your most expensive model, so you can measure the pairing on your own traffic.
What a request costs
List price arithmetic, the same sum a receipt does. llm11 adds nothing per request; the only fee is on buying credits.
| Request | Tokens in / out | One | A thousand |
|---|---|---|---|
| Short chat turn | 500 / 200 | $0.00005 | $0.053 |
| Question over retrieved documents | 4,000 / 500 | $0.00023 | $0.233 |
| Long document summary | 30,000 / 1,000 | $0.00128 | $1.28 |
Cheaper models to try
Nearest in price and below gpt-oss-120b, each within a few points of it on the intelligence index.
| Model | Input / 1M | Output / 1M | Context | Index | Released |
|---|---|---|---|---|---|
| OpenAI gpt-oss-20b | $0.018 | $0.090 | 131K | 9 |
Call it
Same OpenAI request shape. Naming the model pins it, so nothing is routed, and the answer is still checked.
python
from openai import OpenAI
client = OpenAI(base_url="https://www.llm11.com/v1", api_key="llm11_live_...")
res = client.chat.completions.create(
model="openai/gpt-oss-120b",
messages=[{"role": "user", "content": "Hello"}],
)More from OpenAI
| Model | Input / 1M | Output / 1M | Context | Released |
|---|---|---|---|---|
| GPT-6 Luna | $0.100 | $0.500 | 1.05M | |
| GPT-6 Luna Pro | $0.100 | $0.500 | 1.05M | |
| GPT-6 Sol | $2.00 | $10 | 1.05M | |
| GPT-6 Sol Pro | $2.00 | $10 | 1.05M | |
| GPT-6 Astra | $10 | $50 | 1.05M | |
| GPT-6 Astra Pro | $10 | $50 | 1.05M |
Questions
- What is gpt-oss-120b with Jev?
- Jev is TypeSafe AI's System One model. It reads each request first and decides which model in your pool answers, with a calibrated confidence on that call. gpt-oss-120b does the answering when Jev sends it work, or when you name it yourself. gpt-oss-120b falls in the llm11-fast band, and the labs and limits it meets make it eligible for that pack. Packs keep a spread of eight models per band, and it is not one of the eight today, so it is only picked when you name it in a custom pool. Routing decisions are made by Jev, TypeSafe AI's System One model.
- Is gpt-oss-120b a System One model?
- No. gpt-oss-120b answers requests. The System One model is Jev, which decides which model answers each one, so the two do different jobs and llm11 uses both.
- How much does gpt-oss-120b cost?
- $0.037 per million input tokens and $0.170 per million output tokens. A 4,000 token prompt with a 500 token answer costs about $0.00023, so a thousand of them is about $0.233. llm11 passes provider list price through and charges 5% when you buy credits.
- What is the gpt-oss-120b context window?
- 131,072 tokens, with up to 117,964 tokens in a single reply.
- Does gpt-oss-120b support tool calling and structured output?
- The catalogue lists tool calling, structured output and reasoning controls.
- Can I use gpt-oss-120b through llm11?
- Yes. Set model to openai/gpt-oss-120b on the OpenAI-compatible endpoint and the request goes to it directly, with verification still running.
- Does Jev route to gpt-oss-120b?
- Routing decisions are made by Jev, TypeSafe AI's System One model. gpt-oss-120b falls in the llm11-fast band, and the labs and limits it meets make it eligible for that pack. Packs keep a spread of eight models per band, and it is not one of the eight today, so it is only picked when you name it in a custom pool.
- What is a cheaper alternative to gpt-oss-120b?
- Nearest in price and below it: OpenAI gpt-oss-20b at $0.018 in and $0.090 out. Nearest in price and below gpt-oss-120b, each within a few points of it on the intelligence index.