R1 0528 API
About
Build advanced reasoning agents with R1 0528, a specialized AI model optimized for complex logic and chain-of-thought tasks. This model delivers cost-effective pricing at $0.50/1M input and $2.15/1M output tokens, native tool calling support, open weights architecture. Access R1 0528 via the OpenRouter API with up to 33K output tokens.
Capabilities
Input Modalities
text
Output Modalities
text
Reasoning
Yes
Structured Output
Yes
Tool Use
Yes
WeightsOpen
Temperature
Adjustable
Attachment
Not Supported
Limits
Context Window
164K
Tokens
Input Limit
164K
Tokens
Max Output
33K
Tokens
Pricing
Standard (per 1M tokens)
Input
$0.50
Output
$2.15
Caching (per 1M tokens)
Read
$0.35
Frequently Asked Questions
R1 0528 by OpenRouter costs $0.50 per 1M input tokens and $2.15 per 1M output tokens. Cached reads cost $0.35 per 1M tokens.
Model Details
ID
deepseek/deepseek-r1-0528
Provider
OpenRouterFamily
deepseek
Release Date
May 28, 2025
Knowledge Cutoff
Mar 31, 2025
API Integration
NPM Package
@openrouter/ai-sdk-provider
Environment Variables
OPENROUTER_API_KEY
API Base URL
https://openrouter.ai/api/v1