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★ Editor's Pick · Large Language Models

DeepSeek R1 Review: The Open-Source Model That Shocked the World

DeepSeek R1 arrived and upended assumptions about what open-source AI could achieve. We benchmark it against GPT-4o and Claude on reasoning tasks.

By PowerAI · 8 min read · 409 views · March 18, 2026
9.0
Overall Score
★★★★★

Overview

DeepSeek R1 is a reasoning-focused open-source model from Chinese AI lab DeepSeek. It achieved GPT-4o level performance on many benchmarks at a fraction of the training cost, sending shockwaves through the AI industry.

What We Tested

We focused on mathematical reasoning, coding, logic puzzles, and scientific problem solving.

Performance

DeepSeek R1's chain-of-thought reasoning is exceptional. On math and coding benchmarks it matches or beats GPT-4o. Being open-source makes it highly deployable for developers.

Pricing

Open-source and free to self-host. API access available at very competitive rates.

Verdict

DeepSeek R1 is a landmark model for the open-source AI community. For developers and researchers, it is a must-evaluate option.

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