DeepSeek-R1

Overview

This is a model family overview. For version-specific details, see the individual model entries linked below.

DeepSeek-R1 is DeepSeek’s reasoning-centric model family. It gained traction quickly because it combined strong analytical behavior with aggressive hosted API economics while also providing open-weight variants for local or private deployment workflows under an MIT license.

Current Latest

DeepSeek-R1-0528 is the latest official update in the R1 line at this snapshot date. The important May 2026 nuance is that DeepSeek’s hosted API planning has moved on: the old deepseek-reasoner model name currently maps to DeepSeek V4 Flash in thinking mode and is scheduled for discontinuation on July 24, 2026. Use this R1 family page for open-weight reasoning context, not as the preferred API route for new DeepSeek integrations.

Strengths

• Strong math and logic performance for reasoning-heavy tasks.
• Cost-efficient API economics compared with many frontier alternatives.
• Open-weight availability for teams that need self-hosted control.
• Good fit for evaluation-heavy pipelines where throughput and cost both matter.
• Competitive coding and technical problem-solving behavior when prompts are well constrained.

When to Choose DeepSeek-R1

Choose DeepSeek-R1 when you need an open-weight reasoning baseline, self-hosted control, or continuity with older R1 evaluations. For new hosted API work, start with DeepSeek V4 Pro or DeepSeek V4 Flash instead of depending on legacy deepseek-reasoner alias behavior.

Access

• DeepSeek API
• Official DeepSeek model releases on Hugging Face
• Integrations through third-party inference hosts and gateways