How do their growth rates compare?

DeepSeek has a month-over-month growth rate of +4.3%; Sofos has 0%.

How does pricing compare?

DeepSeek: Freemium. Free web and mobile chat app at chat.deepseek.com; pay-as-you-go OpenAI-compatible API with off-peak rates at $0.15/1M input ($0.003 cache hit) and $0.60/1M output for deepseek-flash (V4.1-Flash), and $0.66/1M input ($0.022 cache hit) and $1.98/1M output for deepseek-v4-pro (peak weekday UTC hours bill at 2x). Sofos: Contact for Pricing. Sofos is distributed as a free desktop download for macOS, and the company's public site lists no self-serve subscription tiers or prices — the listed pricing model is "contact for pricing." Note that the underlying agent (Claude Code or Codex) is billed separately by the provider you choose. Check sofos.co for the current terms.

What are alternatives to DeepSeek and Sofos?

Other tools in related categories include ChatGPT, Google Gemini, OpenAI Platform, Google AI Studio, Salesforce Agentforce (formerly Einstein).

DeepSeek vs Sofos — Traffic (372.76M vs 0), Pricing & Verdict

Open AI Tools

DeepSeek vs Sofos — Traffic (372.76M vs 0), Pricing & Verdict | Open AI Tools

Side-by-Side Traffic & Specification Matrix

Dimension / Metric	DeepSeek	Sofos
Official Domain	deepseek.com	sofos.co
Pricing Model	Freemium	Contact for Pricing
Monthly Visits	372.76M (372,761,591)	0 (0)
MoM Traffic Delta	+15.36M (+4.3%)	0 (0%)
Primary Market & Share	🇨🇳 China (50.5%)	🌐 Global (—)
Direct Visits / mo	291.59M	0
User Rating	4.8	4.2
Supported Platforms	Website	Website

DeepSeek

High-efficiency open-weight and hosted reasoning AI powered by DeepSeek-V4 and R1 at ultra-low token costs.

DeepSeek-V4 Hybrid Attention & 1M Context

Leverages a sparse Mixture-of-Experts architecture (49B active parameters out of 1.6T on V4-Pro) to process up to 1 million tokens with minimal latency and memory overhead.

Transparent Chain-of-Thought Reasoning

Pioneered by DeepSeek-R1 and integrated into V3.2 and V4 thinking modes, exposing step-by-step self-verification for complex math, logic, and code debugging.

Automatic Context Caching & Off-Peak API Pricing

Drops input token costs to $0.003/1M on Flash and $0.022/1M on V4-Pro for cache hits, with 50% lower rates during off-peak UTC hours.

Free Consumer Web & Mobile Assistant

Provides free access at chat.deepseek.com and on iOS/Android with document uploads, reasoning mode, and web search without paywalling core models.

Strengths & Pros

+Completely free consumer web and mobile app with deep reasoning and web search included
+Ultra-low API token rates ($0.15/$0.60 on Flash, $0.66/$1.98 on V4-Pro off-peak) with up to 98% savings on cached inputs
+Drop-in OpenAI API compatibility makes switching or routing between models effortless