Nex-N2.5-Pro (free) API
About
Build advanced reasoning agents with Nex-N2.5-Pro (free), 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 Nex-N2.5-Pro (free) via the OpenRouter API with up to 236K output tokens.
Capabilities
Input Modalities
textimage
Output Modalities
text
Reasoning
Yes
Structured Output
Limits
Context Window
262K
Tokens
Input Limit
262K
Tokens
Max Output
236K
Tokens
Pricing
Standard (per 1M tokens)
Input
Free
Output
Free
Frequently Asked Questions
Nex-N2.5-Pro (free) by OpenRouter costs Free per 1M input tokens and Free per 1M output tokens.
Model Details
API Integration
NPM Package
@openrouter/ai-sdk-provider
Environment Variables
OPENROUTER_API_KEY
API Base URL
https://openrouter.ai/api/v1