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Nvidia

Cosmos Reason2 8B API

Nvidia
About

Build advanced reasoning agents with Cosmos Reason2 8B, a specialized AI model optimized for complex logic and chain-of-thought tasks. This model delivers available completely free of charge, native tool calling support, open weights architecture. Access Cosmos Reason2 8B via the Nvidia API with up to 16K output tokens.

Capabilities

Input Modalities

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Output Modalities

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Reasoning
Yes
Structured Output
No
Tool Use
Yes
WeightsOpen
Temperature
Adjustable
Attachment
Supported
Limits
Context Window
131K

Tokens

Input Limit
131K

Tokens

Max Output
16K

Tokens

Pricing

Standard (per 1M tokens)

Input
Free
Output
Free
Frequently Asked Questions

Cosmos Reason2 8B by Nvidia costs Free per 1M input tokens and Free per 1M output tokens.

Model Details
ID
nvidia/cosmos-reason2-8b
Provider
Nvidia
Family
Release Date
Dec 1, 2025
Knowledge Cutoff
N/A
API Integration
NPM Package
@ai-sdk/openai-compatible
Environment Variables
NVIDIA_API_KEY
API Base URL
https://integrate.api.nvidia.com/v1
Documentation