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Nebius Token Factory

gpt-oss-20b API

Nebius Token Factory
About

Process massive datasets with gpt-oss-20b, featuring an expansive 128K context window for long-document analysis. This model delivers cost-effective pricing at $0.05/1M input and $0.20/1M output tokens, native tool calling support, open weights architecture. Access gpt-oss-20b via the Nebius Token Factory API with up to 4K output tokens.

Capabilities

Input Modalities

text

Output Modalities

text
Reasoning
No
Structured Output
Yes
Tool Use
Yes
WeightsOpen
Temperature
Adjustable
Attachment
Not Supported
Limits
Context Window
128K

Tokens

Input Limit
124K

Tokens

Max Output
4K

Tokens

Pricing

Standard (per 1M tokens)

Input
$0.05
Output
$0.20

Caching (per 1M tokens)

Read
$0.0050
Write
$0.06
Frequently Asked Questions

gpt-oss-20b by Nebius Token Factory costs $0.05 per 1M input tokens and $0.20 per 1M output tokens. Cached reads cost $0.0050 per 1M tokens. Cache writes cost $0.06 per 1M tokens.

Model Details
ID
openai/gpt-oss-20b
Provider
Nebius Token Factory
Family
gpt-oss
Release Date
Jan 10, 2026
Knowledge Cutoff
Sep 1, 2025
API Integration
NPM Package
@ai-sdk/openai-compatible
Environment Variables
NEBIUS_API_KEY
API Base URL
https://api.tokenfactory.nebius.com/v1
Documentation