DeepSeek R1 is a text-only reasoning model optimized for multi-step logic, mathematics, and structured analysis. Reach for it when you need explicit chain-of-thought capabilities at 96% lower cost than o1 and can tolerate slower generation speeds.
Modalities
Text → Text
Input
$0.7309 /1M
Output
$2.957 /1M
Context
64K
Speed
slow
Performance
Live production data from real requests on Kyma — not synthetic benchmarks.
Rank
#16
of 87 active models
Tokens served
20.1M
all-time
Success rate
100%
last 7 days
Pricing
Pay per token. Cached input is billed at 10% of the input rate.
+ Estimate your workload− Estimate your workload
Estimated monthly cost
$88.21
$2.94 / day on DeepSeek R1
Same workload on:
Estimates use list pricing. Actual bills depend on real token counts — every response includes its exact cost.
When to use DeepSeek R1
Where this model earns its cost — and where it doesn't.
DeepSeek R1 is a frontier reasoning model from DeepSeek that processes text inputs and returns text outputs. It is designed for tasks that require deep logical deduction, mathematical problem solving, and tool use, with native support for structured outputs.
On Kyma, the model runs behind automatic failover routing and returns exact request costs in the usage.cost field. It operates with a 64,000-token context window, a maximum output length of 32,768 tokens, and a median generation speed of 18 tokens per second. The reasoning alias resolves directly to this model.
This model does not support vision, prompt caching, or multimodal inputs. Because it runs on a slow speed tier, it is not suitable for latency-sensitive applications. Input and output tokens are billed per-token at the platform's listed rates.
Math & Logic Problems
Solve complex mathematical and logical reasoning tasks with explicit step-by-step traces.
Document Analysis
Extract structured insights and perform deep textual analysis across long documents.
Tool-Enabled Workflows
Drive multi-step agent tasks that require explicit reasoning and function calling.
Not ideal for: Avoid this model for real-time conversational interfaces, vision-based tasks, or applications that require prompt caching and low-latency responses.
How it compares
Against the peers people actually weigh it against.
| Spec | DeepSeek R1 | DeepSeek V4 Pro | DeepSeek V4 Flash |
|---|---|---|---|
| Input /1M | $0.7309 | $0.6901 | $0.187 |
| Output /1M | $2.957 | $1.38 | $0.3741 |
| Context | 64K | 1M | 1M |
| Tools | Yes | Yes | Yes |
| Reasoning | Yes | Yes | Yes |
| Speed | slow | medium | fast |
Quick start
Up and running in under two minutes.
- 1
Create an API key
Sign up and grab a key from the dashboard — $0.50 free credit, no card required.
Get API key → - 2
Make your first request
Drop in your key and send a chat completion — fully OpenAI-compatible.
curl https://kymaapi.com/v1/chat/completions \ -H "Authorization: Bearer YOUR_API_KEY" \ -H "Content-Type: application/json" \ -d '{ "model": "deepseek-r1", "messages": [ {"role": "user", "content": "Explain prompt caching in one paragraph."} ] }' - 3
Stream responses
Add
"stream": trueto receive tokens as they arrive.curl https://kymaapi.com/v1/chat/completions \ -H "Authorization: Bearer YOUR_API_KEY" \ -H "Content-Type: application/json" \ -d '{ "model": "deepseek-r1", "stream": true, "messages": [{"role": "user", "content": "Hello!"}] }'
FAQ
Common questions about this model.
What is the context window of DeepSeek R1?
How much does the DeepSeek R1 API cost?
Does DeepSeek R1 support function calling?
How do I use DeepSeek R1?
Does this model support image inputs?
How fast does it generate text on Kyma?
Can I use prompt caching with this model?
More models by DeepSeek
| Model | Context | Input | Output |
|---|---|---|---|
 DeepSeek V4 Flash | 1M | $0.187 | $0.3741 |
| DeepSeek V4 Pro | 1M | $0.6901 | $1.38 |
| DeepSeek V3 | 160K | $0.351 | $0.513 |