OpenAIFree
Gpt Oss 20b
API model name: gpt-oss-20b
Gpt Oss 20b is OpenAI's chat model, served on the Api.Airforce unified API. It has a 131K-token context window. Capabilities include Tool calling, Reasoning. It is available on the free tier at no per-token cost. Knowledge cutoff: 2024-06. Access it through the OpenAI-compatible API with one key, alongside 100+ other models on Api.Airforce.
Pricing
Specifications
- Provider
- OpenAI
- Type
- chat model
- Context window
- 131K tokens
- Max output
- 33K tokens
- Knowledge cutoff
- 2024-06
- Input
- text
- Output
- text
Capabilities
Tool callingReasoningStreaming
Benchmarks
Independent evaluations and measured speed from Artificial Analysis.
Intelligence Index
24.5/100
Coding Index
18.5/100
Math Index
89.3/100
MMLU-Pro75%
GPQA Diamond69%
Humanity's Last Exam10%
LiveCodeBench78%
AIME 202589%
Output speed256.3 tok/s
Time to first token0.48 s
Source: Benchmark data by Artificial Analysis (artificialanalysis.ai)
What is Gpt Oss 20b used for?
- Chatbots & assistants — conversational AI, drafting, summarizing and Q&A.
- Agents & automation — function calling and tool use for multi-step workflows.
- Complex reasoning — math, coding and step-by-step problem solving.
- Real-time experiences — stream tokens for responsive chat and apps.
Gpt Oss 20b vs. similar models
| Model | Intelligence | Context | Input / 1M | Output / 1M |
|---|---|---|---|---|
| Gpt Oss 20b | 24.5 | 131K | Free | Free |
| Gpt 3.5 | — | — | $1.71 | $3.42 |
| Gpt 3.5 Turbo 16k | — | — | $10.26 | $20.52 |
| Gpt 4 | — | 8K | $6.42 | $12.84 |
Prices are Api.Airforce pay-as-you-go rates per 1M tokens. Context is the maximum input length.
Related models
Chatgpt ImageOpenAI · $17.10 / 1MDall E 2OpenAI · $10.00 / 1MDall E 3OpenAI · $20.00 / 1MGpt 3.5OpenAI · $1.71 / 1MGpt 3.5 Turbo 16kOpenAI · $10.26 / 1MGpt 4OpenAI · $6.42 / 1MGpt 4 0125OpenAI · $2.13 / 1MGpt 4 1106OpenAI · $2.13 / 1MGpt 4 32kOpenAI · $205.32 / 1MGpt 4 TurboOpenAI · $2.13 / 1MGpt 4 VisionOpenAI · $2.13 / 1MGpt 4.1OpenAI · $0.30 / 1M
Gpt Oss 20b — frequently asked questions
- How much does Gpt Oss 20b cost?
- Gpt Oss 20b is available on the free tier at no token cost — create an API key and start building. Paid plans add higher rate limits.
- What is the context window of Gpt Oss 20b?
- Gpt Oss 20b supports a context window of up to 131K tokens. It can return up to 33K tokens in a single response.
- What can Gpt Oss 20b do?
- Gpt Oss 20b supports Tool calling, Reasoning.
- Is Gpt Oss 20b free to use?
- Yes — Gpt Oss 20b is on the free tier. You can use it with an Api.Airforce API key at no cost.
- How do I use Gpt Oss 20b via the API?
- Gpt Oss 20b is OpenAI-compatible. Point any OpenAI SDK at https://api.airforce/v1 and pass the model ID gpt-oss-20b with your Api.Airforce API key.
- Who makes Gpt Oss 20b?
- Gpt Oss 20b is OpenAI's chat model, served through the unified Api.Airforce gateway alongside 100+ other models.
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Use Gpt Oss 20b via the API
OpenAI-compatible — point any OpenAI SDK at https://api.airforce/v1 and pass gpt-oss-20b as the model.
cURL
curl https://api.airforce/v1/chat/completions \
-H "Authorization: Bearer $AIRFORCE_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "gpt-oss-20b",
"messages": [{ "role": "user", "content": "Hello!" }]
}'Python
from openai import OpenAI
client = OpenAI(base_url="https://api.airforce/v1", api_key="$AIRFORCE_API_KEY")
r = client.chat.completions.create(
model="gpt-oss-20b",
messages=[{"role": "user", "content": "Hello!"}],
)
print(r.choices[0].message.content)JavaScript
import OpenAI from "openai";
const client = new OpenAI({ baseURL: "https://api.airforce/v1", apiKey: process.env.AIRFORCE_API_KEY });
const r = await client.chat.completions.create({
model: "gpt-oss-20b",
messages: [{ role: "user", content: "Hello!" }],
});
console.log(r.choices[0].message.content);