Butterfish Shell records 34 monthly visits with -97.5% month-over-month growth and Free, Open Source (bring your own API key) pricing. DeepSeek records 372,761,591 monthly visits with +4.3% growth and Freemium pricing.
A bash and zsh shell with LLM prompting built in
High-efficiency open-weight and hosted reasoning AI powered by DeepSeek-V4 and R1 at ultra-low token costs.
| Dimension / Metric | | |
|---|---|---|
| Official Domain | butterfi.sh | deepseek.com |
| Pricing Model | Free, Open Source (bring your own API key) | Freemium |
| Monthly Visits | 34 (34) | 372.76M (372,761,591) |
| MoM Traffic Delta | -1.33K (-97.5%) | +15.36M (+4.3%) |
| Primary Market & Share | 🌐 Global (—) | 🇨🇳 China (50.5%) |
| Direct Visits / mo | 14 | 291.59M |
| User Rating | 4.4 | 4.8 |
| Supported Platforms | Website | Website |
A bash and zsh shell with LLM prompting built in
Start any line with a capital letter to send it to the AI as a prompt, while normal lowercase commands behave exactly as before.
The model receives your recent commands and their output, so follow-up questions like 'why did that fail?' get grounded answers.
Copilot-style command suggestions appear in the shell and can be applied with Tab, informed by your recent history.
Trigger an autonomous loop with ! to have the model propose commands toward a goal, or !! to let it run them without confirmation.
High-efficiency open-weight and hosted reasoning AI powered by DeepSeek-V4 and R1 at ultra-low token costs.
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.
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.
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.
Provides free access at chat.deepseek.com and on iOS/Android with document uploads, reasoning mode, and web search without paywalling core models.
Provides stronger multi-modal reasoning and agentic tools, but lacks DeepSeek's ultra-low-cost API pricing.
Provides stronger multi-modal reasoning and agentic tools, but lacks DeepSeek's ultra-low-cost API pricing.
Offers an enormous context window and deep Google ecosystem integration, but feels less specialized for pure reasoning tasks.
Offers an enormous context window and deep Google ecosystem integration, but feels less specialized for pure reasoning tasks.
Delivers superior long-form coding artifacts and nuanced writing, but lacks DeepSeek's specialized open-weight reasoning models.
Delivers superior long-form coding artifacts and nuanced writing, but lacks DeepSeek's specialized open-weight reasoning models.
Features real-time X social data integration, but is less cost-effective for dedicated developer coding workflows.
Features real-time X social data integration, but is less cost-effective for dedicated developer coding workflows.
SpecialistReal-time AI answer engine and research workspace combining live web citations with frontier reasoning models.
SpecialistReal-time AI answer engine and research workspace combining live web citations with frontier reasoning models.
Free / Open-sourceProvides comparable open-weight foundation models and multilingual performance, but requires self-hosting or third-party inference setup.
Free / Open-sourceProvides comparable open-weight foundation models and multilingual performance, but requires self-hosting or third-party inference setup.
SpecialistThe AI coding agent for building ambitious software
SpecialistThe AI coding agent for building ambitious software
SpecialistExcels at ultra-long document analysis and research, but lacks the same level of open-weight developer community support.
SpecialistExcels at ultra-long document analysis and research, but lacks the same level of open-weight developer community support.
Google's agent-first development platform for building and shipping software with AI agents
Google's agent-first development platform for building and shipping software with AI agents
Free / Open-sourceEnables running open-source models locally on consumer hardware, but lacks DeepSeek's cloud-scale hosted reasoning power.
Free / Open-sourceEnables running open-source models locally on consumer hardware, but lacks DeepSeek's cloud-scale hosted reasoning power.
The AI coding agent that turns ideas into shipped software
The coding agent that learns your coding taste
The coding agent that learns your coding taste
