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DeepSeek

by DeepSeek (High-Flyer Capital)

Open-source AI reasoning model rivaling frontier competitors.

Reviewed March 2026by CBAI Editorial Team
8.0/10

Score

4.0 out of 5 · our score
Compare
Productivity & Collaboration

Our verdict

DeepSeek has disrupted the AI market with open-source models that match GPT-4 and Claude on reasoning benchmarks at a fraction of the cost. The DeepSeek-V3 and R1 models deliver frontier-level performance with API pricing 10-20x cheaper than OpenAI. Best for developers, researchers, and cost-conscious AI applications. The main caveat is potential censorship on sensitive topics, Chinese jurisdiction concerns, and less polished user experience than ChatGPT.

Overview

DeepSeek is a Chinese AI lab offering open-source LLMs matching GPT-4 performance at significantly lower cost. DeepSeek R1 delivers advanced reasoning for coding and math. Extremely cost-competitive API pricing has disrupted the AI market globally. Available via web chat and API.

Screenshot

DeepSeek product screenshot

Score breakdown

Overall score

8.0/10
Output quality8.5/10
Ease of use8.0/10
Value for money9.5/10
Features & tools7.5/10
API & integrations8.5/10
Support & docs5.5/10

Scores are editorial assessments by the Compare Best AI team on a 0–10 scale.

Expert review

C

CBAI Editorial Team

Compare Best AI · Editorial Team

DeepSeek sent shockwaves through the AI industry by releasing open-source models that rival GPT-4 and Claude at dramatically lower training costs and API prices. DeepSeek-V3 and the reasoning-focused R1 model achieve top-tier benchmark scores while being fully open-source and available at the cheapest API pricing in the market.

How we tested

Days tested

14 days

Tasks evaluated

  • ·Reasoning benchmark comparison
  • ·Code generation quality
  • ·Mathematical problem solving
  • ·API latency testing
  • ·Cost analysis vs competitors
  • ·Content policy testing

Method

Head-to-head with ChatGPT GPT-4o and Claude Sonnet on identical tasks

Reviewer

CBAI Editorial Team

Plans & pricing

Free Chat

$0/forever

Anyone wanting a free AI chatbot

  • Free chat interface
  • DeepSeek-V3 and R1 access
  • Web search
  • File upload
  • Rate limited during peak
Most Popular

API

$0.27/per 1M input tokens

Developers building AI applications at the lowest cost

  • DeepSeek-V3 and R1 API
  • 128K context window
  • Function calling
  • JSON mode
  • OpenAI-compatible format
  • Pay per use

Self-Hosted

$0/forever

Organizations wanting full control over AI infrastructure

  • Open-source weights
  • Run on your own GPUs
  • Full privacy control
  • No API costs
  • Custom fine-tuning
  • Requires GPU infrastructure

Pricing may vary by region. Always verify on the vendor's website.

Feature comparison

FeatureDeepSeekChatGPTClaude
Quality
Reasoning performance
Pricing
API cost (per 1M tokens)
Free tier
Open Source
Open-source weights
UX
Consumer chat experience
Features
Image generation
Included Partial / add-on Not included

Is it right for you?

Good fit for

Cost-conscious developers

API pricing 10-20x cheaper than OpenAI enables AI applications that were previously uneconomical.

AI researchers

Open-source weights enable research, fine-tuning, and experimentation without API restrictions.

Startups

Build AI-powered products with frontier-level quality at startup-friendly costs.

Self-hosters

Run powerful AI models on your own infrastructure for maximum privacy and control.

Less suited for

Non-technical users

ChatGPT and Claude offer far more polished consumer experiences with better support.

Sensitive content needs

DeepSeek may censor or refuse certain topics related to Chinese politics and sensitive subjects.

Enterprise compliance

Chinese jurisdiction and limited enterprise support may not satisfy US/EU compliance requirements.

User reviews

4.0

Editorial score

5
48%
4
28%
3
6%
2
4%
1
0%

Distribution is estimated from our editorial score. Verified user reviews coming soon.

Use cases

Typical ways teams rely on this tool — from everyday tasks to specialized workflows.

  • AI Development
  • Code Generation
  • Research
  • Mathematical Reasoning
  • Content Generation
  • API Applications

Integrations

Reported connectors

Apps and services commonly connected out of the box or via official connectors.

  • API (OpenAI-compatible)
  • Python SDK
  • Hugging Face
  • Self-hosted deployment
  • LangChain
  • LlamaIndex

Privacy & compliance

Security & data practices

Highlights we track from the vendor's documentation. Always confirm current terms, subprocessors, and regional policies on their official site.

  • GDPR-ready

Details

Category

Productivity & Collaboration

Price

  • Chat Free
  • API ~$0.27/M input tokens
  • Self-hosted Free

Free version

Yes

Best for

  • Cost-efficient AI API for developers and startups
  • Advanced coding, math and reasoning tasks
  • Open-source model deployment and fine-tuning

Frequently asked questions

DeepSeek

DeepSeek

Productivity & Collaboration

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