gpt-oss-20b with Jev
gpt-oss-20b is a model from OpenAI, released 2025-08-05. It costs $0.018 per million input tokens and $0.090 per million output tokens, reads up to 131K tokens of context, and writes up to 32,768 tokens in one reply. Through llm11, set model to openai/gpt-oss-20b.
- Input price
- $0.018 / 1M
- Output price
- $0.090 / 1M
- Context window
- 131K tokens
- Max output
- 33K tokens
- Cached input
- $0.009 / 1M
- Released
- 2025-08-05
- Accepts
- text
- Intelligence index
- 9
Read from the provider's prompt cache
Artificial Analysis, via the catalogue
Read from the live catalogue and refreshed daily. At blended list price, 99% of the 332 priced models we can call cost more.
Using gpt-oss-20b 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-20b does the answering when Jev sends it work, or when you name it yourself. gpt-oss-20b 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-20b 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 | $0.00003 | $0.027 |
| Question over retrieved documents | 4,000 / 500 | $0.00012 | $0.117 |
| Long document summary | 30,000 / 1,000 | $0.00063 | $0.630 |
Cheaper models to try
Nothing cheaper in the routable set has a benchmark score to compare, so there is no fair substitute to list here.
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-20b",
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-20b 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-20b does the answering when Jev sends it work, or when you name it yourself. gpt-oss-20b 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-20b a System One model?
- No. gpt-oss-20b 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-20b cost?
- $0.018 per million input tokens and $0.090 per million output tokens. A 4,000 token prompt with a 500 token answer costs about $0.00012, so a thousand of them is about $0.117. llm11 passes provider list price through and charges 5% when you buy credits.
- What is the gpt-oss-20b context window?
- 131,072 tokens, with up to 32,768 tokens in a single reply.
- Does gpt-oss-20b support tool calling and structured output?
- The catalogue lists tool calling, structured output and reasoning controls.
- Can I use gpt-oss-20b through llm11?
- Yes. Set model to openai/gpt-oss-20b on the OpenAI-compatible endpoint and the request goes to it directly, with verification still running.
- Does Jev route to gpt-oss-20b?
- Routing decisions are made by Jev, TypeSafe AI's System One model. gpt-oss-20b 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-20b?
- Nothing cheaper in the routable set has a benchmark score to compare, so there is no fair substitute to list.