OpenAI GPT OSS 120B API
OpenAI
OpenAI GPT OSS 120B
About OpenAI GPT OSS 120B
OpenAI GPT OSS 120B is a large language model developed by OpenAI. It's particularly well-suited for orchestrating tool-using agents that call APIs and external services, and handling large contexts of up to 128K tokens. Its 128K-token context window means you can pass in entire documents, codebases, or conversation histories without losing context. Developers choose OpenAI GPT OSS 120B when they need reliable, production-quality AI inference through a simple API — and on Qubax, it's available at a fraction of the cost of traditional providers.
In the broader AI landscape, OpenAI GPT OSS 120B sits among the capable offerings from OpenAI With agentic tool use, it competes with the most capable models on the market. What sets it apart on Qubax isn't just the model itself — it's the accessibility. Rather than dealing with enterprise contracts or traditional payment rails, you get instant access via an OpenAI-compatible endpoint. That means you can drop OpenAI GPT OSS 120B into Cursor, Cline, LangChain, or any framework that speaks the OpenAI protocol and start building immediately.
Qubax offers OpenAI GPT OSS 120B at 98% below OpenRouter's price — just $0.0011 per million input tokens and $0.0045 per million output tokens. That pricing advantage compounds quickly at scale: a high-volume application sending millions of tokens per day can save significantly compared to using OpenRouter or the provider directly. And because Qubax runs on crypto-native infrastructure, you can pay with USDC, USDT, ETH, BTC, or 200+ other cryptocurrencies — no credit card or bank account required.
Pricing
| Token Type | Qubax | OpenRouter | You Save |
|---|---|---|---|
| Input (per 1M tokens) | $0.0011 | $0.070 | 98% |
| Output (per 1M tokens) | $0.0045 | $0.280 | 98% |
Prices per 1 million tokens. Pay with 200+ cryptocurrencies.
Price History (60 Days)
This model's price over the last 60 days. Compare against all top AI models →
Estimated Monthly Cost
Specifications
Use Cases
Capabilities
Quick Start
from openai import OpenAI
client = OpenAI(
base_url="https://api.qubax.ai/v1",
api_key="qbx_live_YOUR_API_KEY",
)
response = client.chat.completions.create(
model="openai-gpt-oss-120b",
messages=[
{"role": "user", "content": "Hello!"}
],
)
print(response.choices[0].message.content)import OpenAI from "openai";
const client = new OpenAI({
baseURL: "https://api.qubax.ai/v1",
apiKey: "qbx_live_YOUR_API_KEY",
});
const response = await client.chat.completions.create({
model: "openai-gpt-oss-120b",
messages: [{ role: "user", content: "Hello!" }],
});
console.log(response.choices[0].message.content);curl https://api.qubax.ai/v1/chat/completions \
-H "Content-Type: application/json" \
-H "Authorization: Bearer qbx_live_YOUR_API_KEY" \
-d '{
"model": "openai-gpt-oss-120b",
"messages": [{"role": "user", "content": "Hello!"}]
}'Get your API key from the dashboard.
Why use OpenAI GPT OSS 120B on Qubax?
98% Cheaper
Up to 98% off OpenRouter prices
Pay with Crypto
200+ coins (BTC, ETH, SOL, USDT, USDC & more). No credit card needed.
OpenAI Compatible
Drop-in replacement. Works with Cline, Cursor, any tool.
More from OpenAI
Compare OpenAI GPT OSS 120B with alternatives
| Model | Provider | Input / 1M | Output / 1M | vs OpenAI GPT OSS 120B |
|---|---|---|---|---|
| OpenAI GPT OSS 120B | OpenAI | $0.0011 | $0.0045 | — |
| Qwen 3 Next 80b | Alibaba | $0.0014 | $0.017 | More expensive |
| Gemma 4 E2B | $0.0012 | $0.0024 | More expensive | |
| NVIDIA Nemotron 3 Nano 30B | Other | $0.0011 | $0.0045 | Same price |
| Qwen 3 235B A22B Instruct 2507 | Alibaba | $0.0013 | $0.0053 | More expensive |
Frequently Asked Questions
How much does the OpenAI GPT OSS 120B API cost?
On Qubax, OpenAI GPT OSS 120B costs $0.0011 per 1M input tokens and $0.0045 per 1M output tokens. This is 98% cheaper than OpenRouter's price of $0.070 per 1M input tokens.
Is the OpenAI GPT OSS 120B API compatible with OpenAI?
Yes. Qubax provides an OpenAI-compatible API. You can use OpenAI GPT OSS 120B as a drop-in replacement by changing your base URL to https://api.qubax.ai/v1 and using your Qubax API key. It works with Cline, Cursor, OpenCode, Hermes Agent, and any tool that supports OpenAI APIs.
Why is OpenAI GPT OSS 120B cheaper on Qubax than OpenRouter?
Qubax sources AI inference from an open compute marketplace on the Base blockchain where GPU providers compete on price. We pass the savings to you — 98% cheaper than OpenRouter's price for OpenAI GPT OSS 120B.
How do I pay for OpenAI GPT OSS 120B API usage?
Qubax uses prepaid crypto credits. Deposit USDC on the Base chain and your balance is automatically deducted as you use the API. No credit card required. Top up from $3.
What is the context window of OpenAI GPT OSS 120B?
OpenAI GPT OSS 120B supports a context window of 128K tokens, allowing you to process large documents, codebases, or long conversations in a single request.
What can I build with OpenAI GPT OSS 120B?
OpenAI GPT OSS 120B is versatile enough for a wide range of applications. You can use it to build autonomous agents that call external tools and APIs, process long documents and entire codebases, and more. Because it's served through Qubax's OpenAI-compatible API, integration into existing apps, agents, or workflows takes just a few lines of code.
How fast is OpenAI GPT OSS 120B on Qubax?
OpenAI GPT OSS 120B on Qubax supports streaming responses, so tokens begin arriving in real time as they're generated. Latency depends on the provider and prompt complexity, but most requests start streaming within 200–800 milliseconds. Qubax routes requests through an intelligent routing layer, which selects the fastest available compute provider for each request — so you get competitive latency at a lower price.
OpenAI GPT OSS 120B vs Qwen 3 Next 80b: which should I choose?
OpenAI GPT OSS 120B by OpenAI and Qwen 3 Next 80b by Alibaba are both strong models in a similar price tier. OpenAI GPT OSS 120B is well-suited for general-purpose language tasks. Qwen 3 Next 80b comes from a different lab and may have different strengths depending on your workload. On Qubax, OpenAI GPT OSS 120B starts at $0.0011/1M input tokens versus Qwen 3 Next 80b's $0.0014/1M — making OpenAI GPT OSS 120B the more cost-effective option for high-volume workloads. Both are available on Qubax with crypto payments and OpenAI-compatible APIs, so you can try each and switch freely.
Can I use OpenAI GPT OSS 120B for commercial projects?
Yes. OpenAI GPT OSS 120B on Qubax can be used for commercial purposes. You own the outputs you generate. Qubax provides the API infrastructure — you bring your use case.
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