DeepSeek · Released May 28, 2025DeepSeek R1 0528
May 2025 DeepSeek R1 update with improved mathematics, coding, and reasoning.
- Capability
- 141.2ECI · #108 of 165
- Input
- $0.512per 1M tokens
- Output
- $2.19per 1M tokens
- Context
- 164K33K max output
What it costs
- Input
- $0.512per million tokens
- Output
- $2.19per million tokens
- Blended (3:1)
- $0.932pricier than 56% of priced models
Typical monthly bills
| Monthly usage | Estimated cost |
|---|---|
| Side project2M input + 0.5M output tokens | $2.12 |
| Team assistant25M input + 5M output tokens | $23.76 |
| Production app250M input + 50M output tokens | $237.58 |
Median of 16 paid API providers on models.dev.
Independent benchmarks
#108 of 165 scored models
The shaded band is Epoch AI’s confidence range (139.0–142.9); the tick marks the median scored model.
Scores from Epoch AI, run independently of DeepSeek.
The details
- Lab
- DeepSeek
- Released
- May 28, 2025
- Context window
- 163,840 tokens
- Max output
- 32,768 tokens
- Inputs
- Text
- Output
- Text
- Reasoning
- Always on
- Tool calling
- Yes
- Structured output
- No
- Weights
- Open weights · MIT
- Availability
- 16 API providerslisted on models.dev
More from DeepSeek
About DeepSeek R1 0528
How much does DeepSeek R1 0528 cost?
DeepSeek R1 0528 costs $0.512 input / $2.19 output per million tokens (median across 16 API providers). At a 3:1 input-to-output mix that is $0.932 per million tokens, more expensive than 56% of the 445 priced models we track.
What is the context window of DeepSeek R1 0528?
DeepSeek R1 0528 accepts up to 163,840 tokens per request and can write up to 32,768 tokens in one response.
How good is DeepSeek R1 0528?
Epoch AI gives DeepSeek R1 0528 a Capabilities Index score of 141.2 (likely range 139.0–142.9), ranking it #108 of 165 models Epoch has scored. Epoch AI benchmark results: GPQA Diamond 76.3%, OTIS Mock AIME 2024–2025 66.4%.
Is DeepSeek R1 0528 open source?
Yes. DeepSeek publishes the weights under the MIT licence, so it can be downloaded and self-hosted.
What inputs does DeepSeek R1 0528 support?
DeepSeek R1 0528 accepts text and replies in text. It is a reasoning model, supports tool calling.
When was DeepSeek R1 0528 released?
DeepSeek released DeepSeek R1 0528 on May 28, 2025.
What are the best alternatives to DeepSeek R1 0528?
The closest current models from other labs on capability, price and release date are Gemini 2.5 Flash (Google, ECI 140.6, $0.30 / $2.50), Kimi K2 Instruct (Moonshot AI, ECI 139.9, $0.57 / $2.30), Qwen3 235B-A22B Thinking 2507 (Alibaba (Qwen), ECI 143.8, $0.30 / $2.90) and GLM-4.7 (Z.ai (Zhipu), ECI 143.7, $0.60 / $2.20).