R1 0528

May 28th update to the [original DeepSeek R1](/deepseek/deepseek-r1) Performance on par with [OpenAI o1](/openai/o1), but open-sourced and with fully open reasoning tokens. It's 671B parameters in siz

Creator: DeepSeek
Lifecycle: Active
Context: 163.8K
Max output: 65.5K
Released: May 28, 2025
Status: up

Input: $0.45 / 1M tokens
Output: $2.15 / 1M tokens
Cached read: $0.23 / 1M tokens
Cached write: — / 1M tokens
Batch discount: —%
Source: OpenRouter
Verified: Apr 5, 2026 (High)

Capabilities

Modalities: text→text
Capabilities: reasoningpromptCachingfunctionCallingstructuredOutputs

Official Links

Intro

https://openrouter.ai/deepseek/deepseek-r1-0528

Docs

https://openrouter.ai/deepseek/deepseek-r1-0528

Pricing

https://openrouter.ai/models

Benchmark Coverage

Benchmark	Version	Score	Date	Source	Notes

Release History

Release	Alias	Lifecycle	Release Date	Deprecation	Shutdown	Summary
R1 0528	deepseek-deepseek-r1-0528	Active	May 28, 2025	—	—	Model available via OpenRouter.

Host Coverage

Host	Type	Context	Pricing Note	Differences
OpenRouter	aggregator	163.8K	$0.45/1M in · $2.15/1M out via OpenRouter	—

Migration Guidance

Change Events

Date	Type	Title	Description	Source
May 28, 2025	family_added	R1 0528 published	Model made available via OpenRouter.	OpenRouter

Other models from DeepSeek

DeepSeek Chat, DeepSeek Reasoner, DeepSeek V3, DeepSeek V3 0324, DeepSeek V3.1, DeepSeek V3.1 Terminus, DeepSeek V3.2, DeepSeek V3.2 Exp, DeepSeek V3.2 Speciale, R1, R1 Distill Llama 70B, R1 Distill Qwen 32B