Nemotron 3.5 Lightning Free API
About
Build advanced reasoning agents with Nemotron 3.5 Lightning 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 Nemotron 3.5 Lightning Free via the OpenCode API with up to 262K output tokens.
Capabilities
Input Modalities
text
Output Modalities
text
Reasoning
Yes
Structured Output
Yes
Tool Use
Yes
WeightsOpen
Limits
Context Window
262K
Tokens
Input Limit
262K
Tokens
Max Output
262K
Tokens
Pricing
Standard (per 1M tokens)
Input
Free
Output
Free
Caching (per 1M tokens)
Read
Free
Frequently Asked Questions
Nemotron 3.5 Lightning Free by OpenCode costs Free per 1M input tokens and Free per 1M output tokens. Cached reads cost Free per 1M tokens.
Model Details
ID
nemotron-3.5-lightning-free
Provider
OpenCodeFamily
nemotron-free
Release Date
Aug 11, 2026
Knowledge Cutoff
N/A
API Integration
NPM Package
@ai-sdk/openai-compatible
Environment Variables
OPENCODE_API_KEY
API Base URL
https://opencode.ai/inference/openai/v1