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 80% below OpenRouter's price — just $0.014 per million input tokens and $0.055 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. New users even get $1 in free credits to test OpenAI GPT OSS 120B risk-free before committing.
Pricing
| Token Type | Qubax | OpenRouter | You Save |
|---|---|---|---|
| Input (per 1M tokens) | $0.014 | $0.070 | 80% |
| Output (per 1M tokens) | $0.055 | $0.280 | 81% |
Prices per 1 million tokens. Pay with 200+ cryptocurrencies.
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. New users get $1 free credits.
Why use OpenAI GPT OSS 120B on Qubax?
80% Cheaper
Up to 80% 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 | $0.014 | $0.055 | — |
| DeepSeek V4 Flash | DeepSeek | $0.0099 | $0.020 | Cheaper |
| Llama 3.3 70B | Meta | $0.013 | $0.042 | Cheaper |
| Mistral Small 3.2 24B Instruct (Morpheus Web) | Mistral AI | $0.024 | $0.065 | More expensive |
| Qwen 3 235B A22B Instruct 2507 (Morpheus Web) | Alibaba | $0.019 | $0.098 | More expensive |
Frequently Asked Questions
How much does the OpenAI GPT OSS 120B API cost?
On Qubax, OpenAI GPT OSS 120B costs $0.014 per 1M input tokens and $0.055 per 1M output tokens. This is 80% 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 the Surplus Intelligence marketplace, an open marketplace on the Base blockchain where compute providers compete on price. We pass the savings to you — 80% 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. New users get $1 in free credits to start. No credit card required.
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 the Surplus Intelligence marketplace, which selects the fastest available compute provider for each request — so you get competitive latency at a lower price.
OpenAI GPT OSS 120B vs DeepSeek V4 Flash: which should I choose?
OpenAI GPT OSS 120B by OpenAI and DeepSeek V4 Flash by DeepSeek are both strong models in a similar price tier. OpenAI GPT OSS 120B is well-suited for general-purpose language tasks. DeepSeek V4 Flash comes from a different lab and may have different strengths depending on your workload. On Qubax, OpenAI GPT OSS 120B starts at $0.014/1M input tokens while DeepSeek V4 Flash comes in at $0.0099/1M, so DeepSeek V4 Flash may be worth considering if you need to minimize per-token cost. 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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