openai
OpenAI: gpt-oss-120b
gpt-oss-120b is an open-weight, 117B-parameter Mixture-of-Experts (MoE) language model from OpenAI designed for high-reasoning, agentic, and general-purpose production use cases. It activates 5.1B parameters per forward pass and is optimized...
Context
131k tokens
Input / 1M tokens
$0.04
Output / 1M tokens
$0.18
Benchmark
—
Pricing
Input tokens$0.04 per 1M tokens
Output tokens$0.18 per 1M tokens
Technical details
Model IDopenai/gpt-oss-120b
Context window131k tokens
Input modalitiestext
Output modalitiestext
TokenizerGPT
Use with MegaBrain
import OpenAI from 'openai'
const client = new OpenAI({
baseURL: 'https://getmegabrain.com/api/gateway/v1',
apiKey: process.env.MEGABRAIN_API_KEY,
})
const response = await client.chat.completions.create({
model: 'openai/gpt-oss-120b',
messages: [{ role: 'user', content: 'Hello!' }],
})Ready to use OpenAI: gpt-oss-120b?
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