Nex-N2.5-Pro API
About
Build advanced reasoning agents with Nex-N2.5-Pro, a specialized AI model optimized for complex logic and chain-of-thought tasks. This model delivers cost-effective pricing at $0.07/1M input and $0.25/1M output tokens, native tool calling support, open weights architecture. Access Nex-N2.5-Pro via the OpenRouter API with up to 236K output tokens.
Capabilities
Input Modalities
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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
$0.07
Output
$0.25
Caching (per 1M tokens)
Read
$0.01
Frequently Asked Questions
Nex-N2.5-Pro by OpenRouter costs $0.07 per 1M input tokens and $0.25 per 1M output tokens. Cached reads cost $0.01 per 1M tokens.
Model Details
API Integration
NPM Package
@openrouter/ai-sdk-provider
Environment Variables
OPENROUTER_API_KEY
API Base URL
https://openrouter.ai/api/v1