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ChatGPT ×
DeepSeek ×
  • ChatGPT ×
  • DeepSeek ×

Comparator · Chat assistants

ChatGPT$20/mo (Plus (consumer))vsDeepSeekFrom $0.3 (deepseek-flash input (cache miss))
Starting price$20/mo · From $0.3
Free tieryes · yes
Plans documented10 · 5
Platforms4 · 2
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Comparison of ChatGPT, DeepSeek
ChatGPT
Visit website for ChatGPT (opens in a new tab)
DeepSeek
Visit website for DeepSeek (opens in a new tab)
Category Chat assistants Chat assistants
Main use cases
  • Drafting and editing text
  • Answering general questions
  • Summarizing documents
  • Getting help with code
  • Brainstorming ideas
  • Chatting with an AI assistant
  • Reasoning-style answers via DeepThink
  • Web search-assisted answers
  • Building apps on the API
  • Coding-agent integrations
Best for Knowledge workers, Students, Developers, General consumers Developers using an API, Cost-conscious token users
Platforms Web, Desktop, Mobile, API Web, API
Pricing model Freemium —
Pricing

Individual plans: Free, Go, Plus and Pro; organization plans: Business and Enterprise. Prices were displayed in a non-US currency when we checked, so US prices are not confirmed here — see official pricing.

Checked Sep 30, 2026. Official pricing ↗

API prices per 1M tokens (USD), off-peak/peak: deepseek-flash input cache-miss $0.15/$0.30, output $0.60/$1.20; deepseek-v4-pro input cache-miss $0.66/$1.32, output $1.98/$3.96. Cache-hit input is lower.

Checked Oct 5, 2026. Official pricing ↗
Key features
  • Chat with file uploads and data analysis
  • Web search and deep research
  • Image generation
  • Voice conversations
  • Projects, memory and custom GPTs
  • Codex coding agent
  • DeepThink mode
  • Search mode
  • OpenAI-format API endpoint
  • Anthropic-format API endpoint
  • JSON output and tool calls
  • 1M-token context length
Pros
  • Free plan available for everyday chat
  • Apps for web, iOS, Android and desktop
  • Wide feature set in one product (search, images, voice, files)
  • Business and Enterprise plans with SSO and admin controls
  • Per-token API pricing is published openly
  • Off-peak rates are half of peak rates
  • API supports tool calls and JSON output
  • Official docs list agent integrations
Limitations
  • Free plan limits uploads, image generation, voice and deep research
  • The lower-cost Go plan may include ads, per OpenAI's pricing page
  • Can produce inaccurate or outdated information that needs checking
  • API usage is billed separately from ChatGPT subscriptions
  • API prices depend on peak or off-peak hours
  • Vision is listed for deepseek-flash only
  • Chat app terms not verified here (chat.deepseek.com blocked automated access)
  • API billed from a topped-up or granted balance
Ratings
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Users
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Review status Listed

Verified Sep 30, 2026

 Listed

Verified Oct 5, 2026