Your unified AI chat workspace

Multi‑engine conversations, smart file understanding, real‑time streaming, rich controls & team governance — all pay‑as‑you‑go. Ask, iterate, attach & refine without limits.

Chat

Powered by leading AI engines

Effortlessly switch engines & models mid‑workflow to always use the best tool for the task.

ChatGPT is an AI-powered language model developed by OpenAI, capable of generating human-like text based on context and past conversations.
Gemini is a multimodal AI model developed by Google that can reason across text, images, audio, video, and code.
Claude is a next-generation AI assistant from Anthropic, built for work and trained to be safe, accurate, and secure.

Everything you need to think, build & learn faster

Precision control when you want it, delightful simplicity when you do not.

Multi‑Engine & Modes

Select from multiple AI engines with quick modes (Creative • Balanced • Precise) or dive into Advanced to pick an exact model. Your preferred engine is remembered.

Smart Attachments

Attach documents, images & audio. Text is extracted, audio transcribed, images vision‑analyzed — automatically blended into every prompt for persistent context.

Conversation Tools

Pin, archive, rename, paginate & organize. Automatic naming kicks in on first reply. Toggle history length & system instructions per conversation.

Attach. Ask. Understand.

Superpowers in every reply

Upload PDFs, Office docs, images, audio & more. We convert what is convertible, validate what needs validation, and keep everything scoped to its conversation. Remove an attachment and its future cost & context disappear instantly. Combine this with tailored model selection — pick quick modes for speed or advanced models for mission‑critical precision. Set conversation‑level system instructions & history depth to sculpt responses.

Real‑Time Streaming
Watch thoughts form live. Smooth scroll & resilient streaming — even if you refocus or navigate.
Dynamic System Instructions
Refine tone & role per conversation. Combine with adjustable history count for razor‑sharp context.
Stop & Continue
Manually stop long replies. Retry or continue failed, overloaded, stopped or length‑capped responses.
Helper Prompts
Curated locale‑aware prompt snippets — inject instantly & send with one click.
Copy & Feedback
One‑tap copy. Like / dislike assistant messages to guide future quality tracking.
Team & Credits
Usage gated by credit. Advanced model selection unlocks with higher roles — perfect for governance.
Chat Attachment

Upload Any File, Ask Anything:
AI-Powered File Analysis

Harness the power of AI to analyze a wide range of files. Upload PDFs, Word documents, images, audio files, video clips, spreadsheets, and more.

Get instant insights, summaries, and answers to your questions about any content within your files. Our advanced services can process text, visual, and audio data, making your file interactions smarter and more efficient than ever.

View All Supported Extensions
Allowed Types
Type Extensions
Document pdf txt text csv docx rtf epub odt ipynb latex
Audio flac mp3 mp4 mpeg mpga m4a ogg wav webm
Image jpeg jpg png gif webp
Code html css js jsx java php py sql md bat yml toml json ini log yaml xml cs bash sh c cpp cxx h hpp rs go rb kt ts tsx m scala dart lua pl pm t coffee tex
AI Models

Customize Your AI Experience:
Choose Your Perfect Model

Tailor your AI interactions with our range of pre-defined modes: Creative, Balanced, and Precise. For even more control, select specific AI models for each engine.

Whether you need creative flair, balanced responses, or pinpoint accuracy, you have the power to select the ideal AI model for your unique needs.

View All Supported Models
Supported Models
Engine Models
OpenAI
GPT-5
gpt-5
GPT-5 Mini
gpt-5-mini
GPT-5 Nano
gpt-5-nano
GPT-5 Chat
gpt-5-chat-latest
GPT-4.1
gpt-4.1
GPT-4.1 Mini
gpt-4.1-mini
GPT-4.1 Nano
gpt-4.1-nano
GPT-4o
gpt-4o
GPT-4o Mini
gpt-4o-mini
O1
o1
O3
o3
O3 Mini
o3-mini
O3 Pro
o3-pro
O3 Deep Research
o3-deep-research
O4 Mini
o4-mini
O4 Mini Deep Research
o4-mini-deep-research
Gemini
Gemini 2.5 Pro
gemini-2.5-pro
Gemini 2.5 Flash
gemini-2.5-flash
Gemini 2.5 Flash Lite
gemini-2.5-flash-lite
Gemini 2.0 Flash
gemini-2.0-flash
Gemini 2.0 Flash Lite
gemini-2.0-flash-lite
Claude
Claude 4.5 Sonnet
claude-sonnet-4-5
Claude 4.1 Opus
claude-opus-4-1
Claude 4.0 Opus
claude-opus-4-0
Claude 4.0 Sonnet
claude-sonnet-4-0
Claude 3.7 Sonnet
claude-3-7-sonnet-latest
Claude 3.5 Sonnet
claude-3-5-sonnet-latest
Claude 3.5 Haiku
claude-3-5-haiku-latest
Claude 3 Haiku
claude-3-haiku-20240307

Built for scale & trust

Optimized queues, resilient streaming & predictable cost structure keep you moving.

Active users
48
Daily AI calls
2,619
12‑month uptime
%99.9
Files processed
33

Start a smarter conversation with Sevantia

Attach, ask & iterate. Only pay for what you use. Your ideas — accelerated.

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