R1 0528 Model Specs, Costs & Benchmarks (July 2026)
R1 0528, developed by DeepSeek, features a context window of 163.8K tokens. The model costs $0.50 per million tokens for input and $2.15 per million tokens for output. It was released on May 28, 2025, and has achieved impressive scores in various benchmarks.
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Overview
 R1 0528 | |
|---|---|
Model Provider The organization behind this AI's development | DeepSeek |
Input Context Window Maximum input tokens this model can process at once | 163.8K tokens |
Output Token Limit Maximum output tokens this model can generate at once | 32.8K tokens |
Release Date When this model first became publicly available | May 28, 2025 1 year ago May 28th, 2025 |
Knowledge Cutoff Latest training-data date reported by the provider | March 31, 2025 |
Pricing
| R1 0528 | |
|---|---|
Input Token Cost Cost per million input tokens | $0.50 per million tokens |
Output Token Cost Cost per million output tokens | $2.15 per million tokens |
Cache Read Cost Cost to reuse cached input tokens | $0.35 per million tokens |
Capabilities & Features
| R1 0528 | |
|---|---|
Input Types Supported input formats | text |
Output Types Supported output formats | text |
Tokenizer Text encoding system | DeepSeek |
Key Features Advanced capabilities | ✓ Function Calling✓ Structured Output✓ Reasoning Mode |
Reasoning Controls Defaults and configurable reasoning effort | Always enabled |
Open Source Model availability |
Benchmarks
| R1 0528 | |
|---|---|
Best Design Arena Score Highest human-preference Elo score across design arenas | 1,211 Elo (#43 in Data Viz (60.7% win rate)) |
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