DeepSeek: R1 0528

reasoning

May 28th update to the original DeepSeek R1 Performance on par with OpenAI o1, but open-sourced and with fully open reasoning tokens.

Context
164K
Max output
33K
Input price
$0.5/1M tokens
Output price
$2.15/1M tokens

Capabilities

Reasoning & Interaction
Reasoning
Tool Calling
Output Control
Structured Output
JSON Mode

Details

Model IDdeepseek/deepseek-r1-0528
Provider OpenRouter
Creator DeepSeek
Familydeepseek-r1
License—
Status—
Typereasoning
Input modalitiestext
Output modalitiestext
Open weight—
Parameters—
Architecture—
Context window164K tokens
Max input—
Max output33K tokens
Reasoning tokens—
Knowledge cutoff—
Release date
Sourceofficial

Tools

Function Callingfunction_calling
Call external functions and APIs

Pricing

Input
$0.5
Output
$2.15
Cache write
—
Cache read
$0.35
Batch in
—
Batch out
—

Family Comparison: deepseek-r1

ModelContextMax outPricing
DeepSeek: R1 Distill Qwen 32B128K33K$0.29$0.29
TNG: DeepSeek R1T2 Chimera164K164K$0.3$1.1
DeepSeek: R1 0528164K33K$0.5$2.15
DeepSeek: R164K16K$0.7$2.5
DeepSeek: R1 Distill Llama 70B8K7K$0.8$0.8

API

GET/v1/models/openrouter/deepseek/deepseek-r1-0528

DeepSeek: R1 0528

deepseek/deepseek-r1-0528

May 28th update to the original DeepSeek R1 Performance on par with OpenAI o1, but open-sourced and with fully open reasoning tokens.

Changes · 5 entries
deepseek/deepseek-r1-0528updatec8065d6Apr 25, 2026, 10:39 AM
max_output_tokens65536→32768
deepseek/deepseek-r1-0528update1867defApr 14, 2026, 10:11 AM
pricinginput$0.45→$0.5cached input$0.225→$0.35
deepseek/deepseek-r1-0528update1cd659eMar 24, 2026, 04:19 AM
capabilitiesjson modeyes
deepseek/deepseek-r1-0528update2b100acMar 23, 2026, 05:30 AM
model_typereasoning
release_date2025-05-28
taglineMay 28th update to the [original DeepSeek R1](/deepseek/d...
tools["function_calling"]
deepseek/deepseek-r1-0528create7f5c66fMar 21, 2026, 05:16 AM