
OpenAI's flagship multimodal assistant powered by GPT-6 and GPT-5.6 for reasoning, coding, and deep research.
OpenAI's flagship multimodal assistant powered by GPT-6 and GPT-5.6 for reasoning, coding, and deep research.
DeepL records 95,110,871 monthly visits with -1.7% month-over-month growth and Freemium pricing. Serif records 131,023 monthly visits with +3.4% growth and Free Trial, Paid, Contact for Pricing pricing.
AI agents that run your email and document work
| Dimension / Metric | ![]() | |
|---|---|---|
| Official Domain | deepl.com | serif.ai |
| Pricing Model | Freemium | Free Trial, Paid, Contact for Pricing |
| Monthly Visits | 95.11M (95,110,871) | 131.02K (131,023) |
| MoM Traffic Delta | -1.66M (-1.7%) | +4.26K (+3.4%) |
| Primary Market & Share | 🇩🇪 Germany (15.8%) | 🇺🇸 United States (18.1%) |
| Direct Visits / mo | 60.38M | 44.02K |
| User Rating | 4.7 | 4.1 |
| Supported Platforms | Website | Website |

Enterprise-grade neural machine translation, AI writing refinement, and real-time voice translation across thirty-plus global languages.
Translates whole PDF, Word (.docx), PowerPoint (.pptx), Excel (.xlsx), and HTML files up to 30 MB (Individual/Team) or 100 MB (Business/Enterprise) while keeping original fonts, tables, slides, and visual formatting intact.
Ensures consistent brand and technical terminology across language pairs using CSV-importable shared glossaries, automated glossary generation, shared style rule lists, and translation memory.
Enhances original drafts and translated copy with real-time sentence rewrites, word alternatives, and one-click tone adjustments (e.g., Business, Academic, Casual, Diplomatic) via browser, desktop, and Microsoft 365/Google Workspace add-ins.
Provides real-time spoken language translation and live multilingual captions for video conferences and mobile in-person dialogues, with 30 minutes per user per month included in paid DeepL Pro plans.
AI agents that run your email and document work
Agents read email threads, pull attachments, run lookups, apply your policies, and write replies automatically, covering tasks from routine answers to multi-step document chasing.
Serif requests paperwork, reads what comes back, checks it against what you actually need, and keeps following up until the file is complete — ideal for closings, claims, and intake packets.
When an agent is unsure how to proceed, it routes the job to the right person for review, so automation handles volume while judgment stays with your team.
Manage addresses like info@, support@, billing@, and closing@ from a shared inbox, with email management, autoresponders, and customer service agents built in.

OpenAI's flagship multimodal assistant powered by GPT-6 and GPT-5.6 for reasoning, coding, and deep research.
OpenAI's flagship multimodal assistant powered by GPT-6 and GPT-5.6 for reasoning, coding, and deep research.
SpecialistAnthropic's frontier AI workspace powered by Claude 5.5 for agentic coding, analysis, and nuanced writing.
SpecialistAnthropic's frontier AI workspace powered by Claude 5.5 for agentic coding, analysis, and nuanced writing.
Free / Open-sourceHigh-efficiency open-weight and hosted reasoning AI powered by DeepSeek-V4 and R1 at ultra-low token costs.
Free / Open-sourceHigh-efficiency open-weight and hosted reasoning AI powered by DeepSeek-V4 and R1 at ultra-low token costs.

SpecialistCross-platform AI writing assistant delivering real-time grammar correction, tone alignment, authorship tracking, and team style guides.
SpecialistCross-platform AI writing assistant delivering real-time grammar correction, tone alignment, authorship tracking, and team style guides.
SpecialistParaphrase, proofread and summarize text with an AI writing workspace
SpecialistParaphrase, proofread and summarize text with an AI writing workspace

The AI productivity suite with agents, email, and docs that work wherever you do
The AI productivity suite with agents, email, and docs that work wherever you do
AI translation for text, images, documents and speech in 100+ languages
AI translation for text, images, documents and speech in 100+ languages
Professional AI translation for text, documents, images and audio

SpecialistOn-premise translation and speech recognition for enterprises
SpecialistOn-premise translation and speech recognition for enterprises

SpecialistAI-powered localization and translation platform for global content
SpecialistAI-powered localization and translation platform for global content

Collaborative inbox and email management for teams
Collaborative inbox and email management for teams

An adaptive AI work assistant that learns how you work across inboxes, calendars, chats, and apps
An adaptive AI work assistant that learns how you work across inboxes, calendars, chats, and apps