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Poe

GPT-OSS-120B-CS API

Poe
About

Build advanced reasoning agents with GPT-OSS-120B-CS, a specialized AI model optimized for complex logic and chain-of-thought tasks. This model delivers cost-effective pricing at $0.35/1M input and $0.75/1M output tokens, native tool calling support. Access GPT-OSS-120B-CS via the Poe API with reliable low-latency inference.

Capabilities

Input Modalities

text

Output Modalities

text
Reasoning
Yes
Structured Output
No
Tool Use
Yes
WeightsClosed
Temperature
Fixed
Attachment
Supported
Limits
Context Window
128K

Tokens

Input Limit
128K

Tokens

Max Output
N/A

Tokens

Pricing

Standard (per 1M tokens)

Input
$0.35
Output
$0.75
Frequently Asked Questions

GPT-OSS-120B-CS by Poe costs $0.35 per 1M input tokens and $0.75 per 1M output tokens.

Model Details
ID
cerebras/gpt-oss-120b-cs
Provider
Poe
Family
Release Date
Aug 6, 2025
Knowledge Cutoff
N/A
API Integration
NPM Package
@ai-sdk/openai-compatible
Environment Variables
POE_API_KEY
API Base URL
https://api.poe.com/v1
Documentation