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v0

v0-1.5-lg API

v0
About

Build advanced reasoning agents with v0-1.5-lg, a specialized AI model optimized for complex logic and chain-of-thought tasks. This model delivers cost-effective pricing at $15.00/1M input and $75.00/1M output tokens, native tool calling support. Access v0-1.5-lg via the v0 API with up to 32K output tokens.

Capabilities

Input Modalities

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Output Modalities

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Reasoning
Yes
Structured Output
No
Tool Use
Yes
WeightsClosed
Temperature
Adjustable
Attachment
Supported
Limits
Context Window
512K

Tokens

Input Limit
512K

Tokens

Max Output
32K

Tokens

Pricing

Standard (per 1M tokens)

Input
$15.00
Output
$75.00
Frequently Asked Questions

v0-1.5-lg by v0 costs $15.00 per 1M input tokens and $75.00 per 1M output tokens.

Model Details
ID
v0-1.5-lg
Provider
v0
Family
v0
Release Date
Jun 9, 2025
Knowledge Cutoff
N/A
API Integration
NPM Package
@ai-sdk/vercel
Environment Variables
V0_API_KEY
Documentation