What is DeepSeek

DeepSeek stands out because it has become a reference point for price-performance. Teams exploring DeepSeek are usually asking a practical question: can we get strong reasoning and coding output at materially lower API cost than the biggest frontier vendors?

DeepSeek is a newer entrant than many of the largest Western AI brands, but it rose quickly by becoming shorthand for strong reasoning performance at disruptive API prices. Its history matters because the company’s momentum has come less from consumer branding and more from changing the market conversation around price-performance for serious model use.

Core offerings

  • Chat and reasoning model options for general assistant and analytical workloads.
  • Developer-facing API access with public pricing.
  • A reputation for strong reasoning value relative to cost.

Pricing

DeepSeek’s current API documentation lists fixed rates per million tokens. DeepSeek-V4-Flash costs US$0.0028 for cache-hit input, US$0.14 for cache-miss input, and US$0.28 for output. DeepSeek-V4-Pro costs US$0.003625, US$0.435, and US$0.87 respectively. Both support thinking and non-thinking modes, a one-million-token context window, up to 384,000 output tokens, JSON output, tool calls, prefix completion, and FIM completion. The legacy deepseek-chat and deepseek-reasoner aliases were deprecated on 24 July 2026.

Model footprint

DeepSeek’s public pricing pages are comparatively simple, with core attention on chat and reasoning models rather than a sprawling consumer product catalogue. That simplicity is a strength for builders who care about predictable deployment decisions.

Why select DeepSeek

DeepSeek is compelling when cost matters, reasoning matters, and you are comfortable with a more focused platform. It is particularly attractive for experimentation, agent backends, coding assistants, and workloads where premium model prices have blocked broader rollout.

Official sources: DeepSeek API pricing.

Current models

DeepSeek’s current public pricing page is unusually clean and useful. It exposes live model versions, context windows, max output, thinking support, concurrency, and cache-hit pricing directly.

ModelContext / outputKnowledge / trainingPricing / token useSpeed / notes
DeepSeek-V4-Flash
deepseek-v4-flash
1M context
384K max output
Thinking and non-thinking modes supported
Training data and cutoff: not publicly disclosed
US$0.14 cache miss / US$0.0028 cache hit / US$0.28 output per 1M tokensAggressively priced, high-concurrency model with JSON, tool calls, prefix completion, and FIM support
DeepSeek-V4-Pro
deepseek-v4-pro
1M context
384K max output
Thinking and non-thinking modes supported
Training data and cutoff: not publicly disclosed
US$0.435 cache miss / US$0.003625 cache hit / US$0.87 output per 1M tokensHigher-priced Pro tier with lower concurrency ceiling than Flash