product Definable Assistant
The chat that does.
Not another chatbot — an AI coworker. It picks from 50+ models, drives your browser, acts inside 1,000+ apps and turns any conversation into a repeatable flow.
free · no card · every model included
you
assistant
you
Multi-model by default
Pick the model. Or let it route.
Every prompt gets the right brain for the job. Switch in one click, compare side-by-side, or let the router pick the best model per task — cost, latency or quality first.
GPT-5.5
reasoning
Claude Opus 4.7
long context
Gemini 3.1 Pro
multimodal
Llama 4
open · fast
Mistral Large 3
european
DeepSeek V3.2
math
Qwen 3.5
multilingual
Cohere Cmd R+
RAG native
Sonar
web grounded
+ 41 more
updated weekly · all free
one subscription · every model · no per-model add-ons
Browser automation
It doesn’t stop at chat. It drives the browser.
Some work has no API. The Assistant opens a real browser session, navigates dashboards, fills forms and extracts tables — with your permission, on your accounts, fully logged.
session log · live
Open dashboard.stripe.com/invoices
authenticated session
Filter to Q1 · paid invoices
applies 3 filters
Extract table · 214 rows
structured JSON
Export CSV + attach to draft
handed to outlook.draft
permissioned · audited · reversible — you approve every sensitive action
1,000+ app integrations · MCP-native
Real actions. Not just reads.
The Assistant doesn’t just summarise your inbox — it drafts and sends. It doesn’t just look at your CRM — it updates stages and creates deals. Writes, not just reads.
Gmail · Outlook · Superhuman · Front
CRM
HubSpot · Salesforce · Pipedrive · Apollo
Ops
Slack · Notion · Linear · Jira · Asana
Data
Postgres · Snowflake · BigQuery · Airtable
Flows · multi-step execution
Describe it once. Run it forever.
Any conversation can become a reusable flow. Schedule it, share it, chain it into another — your “investor outreach” becomes a Monday-morning ritual that runs without you.
- Recurring runs — hourly, daily, weekly or cron
- Approval gates for human-in-the-loop steps
- Branching, error handling and automatic retries
- Shareable with your team, version-controlled
every run audited · every step retryable
Fetch 40 prospects from Apollo
1.2sFilter by vertical & stage
0.4sDraft pitch emails · 40 variants
6.8sQueue via Outlook for review
0.9sThe platform underneath
Built on a grown-up foundation.
Compare mode
Run one prompt through three models side-by-side. Keep the best answer, learn the differences.
Memory that matters
Persistent context per workspace and per session — the Assistant never asks you twice.
Scheduled flows
Cron-style runs with approval gates, retries and a full audit trail on every step.
Open SDK
Python SDK and an MCP server — extend the Assistant with your own tools and data.
Define your coworker.
Try the Assistant free — 5,000 credits, every model, every integration, browser automation included.