R1
Open weightToolsDeepSeek · Released January 2025 · Knowledge cutoff July 2024
DeepSeek R1 is here: 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 in an inference pass....
It is part of DeepSeek's open-weight line, known for delivering near-frontier reasoning and coding quality at a fraction of typical frontier pricing.
Facts and pricing
- Provider
- DeepSeek
- Context window
- 164K tokens
- Input price
- 7.7 credits / 1M tokens ($0.70 raw)
- Output price
- 27.5 credits / 1M tokens ($2.50 raw)
- Vision (image input)
- No
- Tool calling
- Yes
- Extended reasoning
- No
Credits are what Zeplik bills: 1 credit = $0.10, computed from the raw provider rate with a 1.10x margin. Raw prices shown per 1M tokens.
Try R1 now
What R1 is best for
- Everyday chat and drafting on an open-weight model with transparent lineage
- Long documents: the 164K-token window holds lengthy reports, contracts or papers whole
- Tool use and agents: reliably calls functions, so it can search, run skills and drive workflows
Example prompts
Prompts that suit a open weight model like R1:
- Draft a project update from these rough notes
- Explain how HTTPS works to a curious teenager
- Turn this list of features into a changelog entry
- Brainstorm objections to this proposal and how to answer them
DeepSeek family
| Model | Context | Input cr/M | Output cr/M | Released |
|---|---|---|---|---|
| DeepSeek V4 Pro | 1.0M | 4.8 | 9.6 | April 2026 |
| DeepSeek V4 Flash | 1.0M | 0.99 | 2.0 | April 2026 |
| DeepSeek V3.2 | 131K | 2.5 | 3.8 | December 2025 |
| DeepSeek V3.2 Exp | 164K | 3.0 | 4.5 | September 2025 |
| DeepSeek V3.1 Terminus | 164K | 3.0 | 10.5 | September 2025 |
| DeepSeek V3.1 | 164K | 2.3 | 8.7 | August 2025 |
| R1 0528 | 164K | 5.5 | 23.7 | May 2025 |
| DeepSeek V3 0324 | 164K | 2.6 | 9.9 | March 2025 |
| R1 Distill Llama 70B | 128K | 8.8 | 8.8 | January 2025 |
| R1 | 164K | 7.7 | 27.5 | January 2025 |
Frequently asked questions
- What is R1?
- R1 is an AI model by DeepSeek. DeepSeek R1 is here: 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 in an inference pass....
- How much does R1 cost on Zeplik?
- Input tokens cost 7.7 credits per million and output tokens 27.5 credits per million (1 credit = $0.10; the raw provider rates are $0.70 and $2.50 per million). New accounts start with free credits.
- How long can a conversation with R1 be?
- R1 has a 164K-token context window (163,840 tokens), which covers the conversation plus any documents you attach.
- Does R1 support images and tools?
- R1 is text-only and supports tool calling.
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