GRAIN MODELS
Hosted. Ready now.
Plan, research, write, analyze, and run cloud-ready work from the browser or iOS—without configuring a machine.
Instant startCross-deviceAuto-routed
ONE MISSION · EVERY MODEL · YOUR MACHINES
Start building today with Grain
Build a product, an internal tool, or the work that keeps your business moving. Use hosted Grain Models—or bring any AI you already use.
The AI tools you already pay for
- ChatGPT
- Claude Code
- Muse Code
- Grok
- Gemini CLI
- Kimi Code
Power your Grain teammates
- Builder
- Analyst
- Operator
FROM ONE CLEAR OUTCOME
Build anything
Software is only the start. One Grain Mission can coordinate code, research, spreadsheets, documents, campaigns, and the work needed to ship them.
Start with an outcome
Open GrainHOSTED WHEN YOU WANT IT · LOCAL WHEN YOU NEED IT
Choose where Grain runs
Use Grain Models for an instant hosted run. Use the Grain Executor when a Mission needs the AI subscriptions, repositories, files, or tools on your computer.
GRAIN EXECUTOR · ON YOUR COMPUTER
Your computer runs it.
The Executor is the secure runner inside Grain Desktop. It picks up a Mission, uses the models and tools already on that computer, and returns the result to your Grain workspace.
Connect more computers to build a Workhorse fleet.
MISSION · FIX CHECKOUT
01 Started on iPad02 MacBook Pro picked it up03 Codex · isolated branch04 Tests pass · ready to reviewMISSION HARNESS
Not a prompt. A governed run.
1Ask2Plan3Build4Verify5Ship
BOTS + GROUPS
AI teammates that keep the job.
Give a Bot a role, model, machine, projects, tools, memory, and routines—then work with it in one permanent conversation.
YOUR BUSINESS, BUILT INTO THE MISSION
For building your business.
Grain runs on enterprise-grade infrastructure. Build full-stack software that scales.
Scroll to follow the mission
01Hosting · SSL · backend
Hosting, handled1 of 5
YOUR BUSINESS, BUILT INTO THE MISSION
For building your business.
Grain runs on enterprise-grade infrastructure. Build full-stack software that scales.
Hosting, handled
Grain handles hosting, SSL, and backend. Your code and data stay yours. Always.
Your app stack, connected
Connect the tools your team already uses, from repositories and messaging to files, CRM, and automation.
Payments, processed
Take payments securely, settle globally, and keep the operational work inside the same Grain Mission.
Run it on your own computer
The Grain Executor connects Claude Code, Codex, Grok CLI, Gemini CLI, and the subscriptions already available on your machine.
Works wherever, whenever
Start on the web, continue on desktop or iOS, and inspect, edit, save, and ship from the screen in front of you.
MIX THE FRONTIER
Use any model
Plan with Grain Models. Build with Claude Code. Verify with Codex. Ship from the same Mission.
Claude CodeCodexGrok CLIGeminiOpenCodeKimi+ compatible providers
INTELLIGENT ROUTING
The right model for each stage.
PlanGrain ModelsCodeYour ExecutorReviewIndependent modelShipApproved tools
BRING-YOUR-OWN ECONOMICS
Use the subscriptions and compute you already pay for.
Keep hosted convenience for the fast path. Run on your Executor when the work needs local code, tools, privacy, or predictable subscription costs.
MODEL HEALTH
Know what is actually ready.
Ping models on each machine, inspect their real response, and decide which engines are active.
Claude Codex Grok
WORKING ARTIFACTS, NOT CHAT ATTACHMENTS
Open it in Grain Suite.
Chat with the actual file, edit it directly, save your changes, and continue from any supported device.
GRAIN SHEETS
CSV, XLS, XLSX, ODS
Analyze, ask questions, edit cells, preserve workbook structure, save, and export.
GRAIN DOCS + SLIDES
Documents people can continue.
Build and revise plans, reports, briefs, and presentations without flattening them into chat.
GRAIN TABLES + APPS
Structured work with a real interface.
Create editable tables, trackers, forms, checklists, and operational apps around the work.
YOUR NEXT MISSION
Ready to take the idea all the way?
Hosted convenience. Bring-your-own economics. One Grain Mission.