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DeepSeek: R1 0528

deepseek/deepseek-r1-0528
CompareAPITry this model

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.

Modalities
In / out per 1M$0.50 / $2.15
Context160K
ReleasedMay 28, 2025

Providers

3 providers serve this model upstream.

Providers serving this model
ProviderInput /MOutput /MCache read /MLatency P50Throughput P50Uptime
SiliconFlowfp8$0.50$2.18Variable1.43s19 tps100%
DeepInfraus · fp4$0.50$2.15$0.350.73s39 tps99.91%
StreamLake$0.57$2.29Variable3.30s43 tps99.77%

Market-wide measurements, refreshed every 15 minutes. They describe who serves R1 0528 in general, not how ProjectCOZY routes your requests.

Pricing

List rates per 1M tokens — what R1 0528 costs pay-as-you-go elsewhere, not what you pay here.

Input
$0.50
per 1M tokens
Output
$2.15
per 1M tokens
Cache read
$0.35
per 1M cached tokens
Included in every pass
R1 0528 is included in every ProjectCOZY pass at no extra cost — one flat rate, no per-token metering. The rates above are there for comparison.

Performance

Time to first token and output speed across every provider, over the last 3 days.

0.0s2.0s4.0s6.0s8.0s
Oct 16, 12 AMOct 16, 8 AMOct 16, 4 PMOct 17, 12 AMOct 17, 8 AMOct 17, 4 PMOct 18, 12 AMOct 18, 8 AMOct 18, 4 PMOct 19, 12 AMOct 19, 8 AM
DeepInfra (us) StreamLake SiliconFlow
0 tok/s50 tok/s100 tok/s150 tok/s200 tok/s
Oct 16, 12 AMOct 16, 8 AMOct 16, 4 PMOct 17, 12 AMOct 17, 8 AMOct 17, 4 PMOct 18, 12 AMOct 18, 8 AMOct 18, 4 PMOct 19, 12 AMOct 19, 8 AM
DeepInfra (us) StreamLake SiliconFlow

Uptime

100% of requests were served successfully over the last 3 days, across all providers.

Last 3 daysAvailability 99.9%
Oct 16, 12:00 PMNow
Availability over the last 24 hoursAvailability 99.95%
100% 98% 97% 95%
Oct 18, 12:20 PMNow

Apps

Tools that most often run R1 0528, by tokens this week.

Janitor AIRoleplay · 86.6% of tokens15.9BSillyTavernRoleplay · 5.1% of tokens940.9MChub AIRoleplay · 3.8% of tokens701.7MSophia's LoreBaryRoleplay · 2.8% of tokens522.1MPortkey AIProgramming App · 1.7% of tokens309.1M

Activity

50.1B tokens processed market-wide in the last month.

0500.0M1.0B1.5B2.0B
Sep 19Sep 24Sep 29Oct 4Oct 9Oct 14Oct 19
Tokens

FAQ

Which model id do I use for R1 0528?
deepseek/deepseek-r1-0528. Send it as the model field from any OpenAI-compatible client, against http://192.168.1.55/v1.
How much context does R1 0528 hold?
163,840 tokens per request, of which up to 32,768 can be the response.
What can it accept and return?
Input: text. Output: text.
What does R1 0528 cost on a pass?
Nothing beyond the pass itself. Pay-as-you-go elsewhere it lists at $0.50 per 1M input tokens and $2.15 per 1M output tokens.
How current is its knowledge?
Training data runs to Mar 2025. Anything later has to come from your prompt or a tool call.
Who built R1 0528?
DeepSeek, in the R1 family.

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