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Model

R1 0528

DeepSeek R1 0528 — pricing, 164k context window, API cost calculator and alternatives.

By DeepSeek

🔧 Tools Function calling — the model can structure responses as tool calls with typed arguments. Reliability differs between providers. Glossary → {} JSON Forces output to be valid JSON, reducing parse errors. Some providers also let you constrain to a schema. Glossary →
Context window Maximum tokens (input + output) the model can process in a single request. Glossary →
163,840
tokens
Input price What the model charges for tokens you send (prompt + context). Glossary →
$0.5000
per 1M tokens
Output price What the model charges for tokens it generates. Usually 3–5× pricier than input. Glossary →
$2.1500
per 1M tokens

Specs

Provider
DeepSeek
Slug
deepseek/deepseek-r1-0528
Capabilities
tools, json_mode

Pricing freshness

Tier
standard
Currency
USD
As of
2026-05-08 17:08 UTC
Estimate monthly cost → See alternatives to R1 0528 →

Pricing history

Tracking R1 0528 pricing since 2026-05-08. We'll plot the chart here once it changes.

Quickstart — call R1 0528 from your app

curl https://api.deepseek.com/v1/chat/completions \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer $DEEPSEEK_API_KEY" \
  -d '{
    "model": "deepseek-r1-0528",
    "messages": [{"role": "user", "content": "Hello!"}]
  }'

Official docs: https://api-docs.deepseek.com/

Related models

Similar capabilities, context window, and price tier — drawn from across the catalog so you can compare alternatives in one click.

Frequently asked questions

What is R1 0528?

R1 0528 is a large language model API from DeepSeek with a 164k-token context window. It costs $0.5 per 1M input tokens and $2.15 per 1M output tokens.

How much does R1 0528 cost?

R1 0528 is priced at $0.5 per 1M input tokens and $2.15 per 1M output tokens via the DeepSeek API. A 50/50 input/output workload of 1M total tokens costs about $1.325.

What is the context window of R1 0528?

R1 0528 supports up to 164k tokens of context per request — roughly 328 pages of English text or 20480 lines of code at a typical density.

Does R1 0528 support vision, tool use, or JSON mode?

R1 0528 supports tool/function calling and structured JSON mode. It does not support image input (vision).

Who makes R1 0528?

R1 0528 is built and operated by DeepSeek. Pricing, context window, and capabilities on this page are refreshed nightly from DeepSeek's public catalog.

Can I self-host R1 0528?

R1 0528 is API-only — its weights are not publicly distributed by DeepSeek, so it cannot be self-hosted today.

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