AI Observatory / Model Radar
DeepSeek / deepseek/deepseek-r1-0528
DeepSeek: 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 size, with 37B active...
163,840
Context
32,768
Max output
$0.50 / 1M
Prompt price
2025-05-28
Created
01 / Snapshot
Pricing, context, modalities, and parameters.
Model Radar detail pages stay neutral and operator-readable: core metadata first, then workflow fit.
| Provider | DeepSeek | Input modalities | text |
|---|---|---|---|
| Output modalities | text | Prompt price | $0.50 / 1M |
| Completion price | $2.15 / 1M | Request price | N/A |
| Context length | 163,840 | Max completion tokens | 32,768 |
| Supported parameters | frequency_penalty, include_reasoning, logit_bias, max_tokens, min_p, presence_penalty, reasoning, repetition_penalty, response_format, seed, stop, structured_outputs, temperature, tool_choice, tools, top_k, top_p | ||
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deepseek/deepseek-r1-0528
DeepSeek: 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 size, with 37B active...
Deep analysis
High-volume usage
Coding workflows
tool-capable
low-cost
03 / Colophon
Routes and exits.
Each model page stays simple: overview, compare, related models, then back to the public hub.