Head to head

QuillBot vs DeepSeek

QuillBot (Course Hero) and DeepSeek (DeepSeek) both sit in Writing. DeepSeek is the cheaper entry point at Pay-as-you-go API pricing (not fully detailed in text). Free tier or flat-rate seats not specified.. DeepSeek shipped more tracked changes in the last 30 days (11 vs 0). Every value below comes from the latest crawl of the vendors' own pages.

AttributeQuillBot

Course Hero

DeepSeek

DeepSeek

SegmentWritingWriting
Version2025DeepSeek-V4.1-Flash-1017
Entry costFree tier · from $9.95/moPay-as-you-go API pricing (not fully detailed in text). Free tier or flat-rate seats not specified.
Pricing tiers—Pay-as-you-go API free
Model stackin-house + frontierdeepseek-flash · DeepSeek-R1 · DeepSeek-V3.2 · deepseek-v4-flash · DeepSeek-V4-Flash-0731 · DeepSeek-V4-Flash-Vision-Exp · DeepSeek-V4-Pro · DeepSeek-V4-Pro-0813 · DeepSeek-V4.1-Flash · DeepSeek-V4.1-Flash-1017
Context window—1000000
Public API
Routes models
Changes / 30d011
OriginGlobalChina
CapabilitiesParaphraser, Grammar, CitationsReasoning mode, Open weights (MIT), OpenAI-compatible API, Context caching, Function calling, Thinking Mode, Context Caching, JSON Output

DeepSeek

Hangzhou lab whose V and R series models are released under permissive licences and undercut Western API pricing by an order of magnitude.

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