Nucleus is Terramind's AI-native IDE — a desktop editor with PR review, security audit, automations, and 100+ models built in. It runs Atlas (our agent), Claude Code, and Codex as siblings, so you pick per task instead of being locked to one runtime.

How does it compare to Cursor, Claude Code, Codex, or open coding agents like OpenClaw?

Cursor is convenient but adds usage-based AI billing on top of a $20 seat. Claude Code and Codex are single-provider CLIs that need a Pro sub to run. Open coding agents give you breadth but you wire the runtime, the models, the review, and the security yourself. Nucleus is the convenience of Cursor with the power of an always-on agent — review, security, automations, every model, and Agents chat in the same $20 Plus plan, no markup, no per-token tax.

Which models run in the editor?

The model of your choice, from a catalog of 100+ — Claude, GPT, Gemini, Grok, DeepSeek, Llama, and more. Carbon and Helium, Terramind's in-house models, are coming soon to run natively in-editor.

How does the in-editor security audit work?

Hundreds of AI auditors run in parallel against your repo, prove which exploits are real, rank them P0 to P2, and patch in-editor without leaving the file. Runs locally and privately — your code never leaves your machine.

What automations are supported?

Triggers: PR opened, Issue opened, CI failed, Sentry error, daily cron, weekly cron. Outputs: PR comment, auto-fix PR, Sentry resolved, standup digest, release notes, inbox.

macOS is shipping today. Windows and Linux are on the waitlist. Download at terramind.com/nucleus/downloads.

Terramind / Atlas

Coding
[A
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for
Reviews

Built-in automations, AI code reviews, browser agent, security audit, and support for every major model provider — all in one IDE.

Nucleus IDE Review Security Automations

Join Mac waitlist View all downloads

Generated natively in Nucleus.

Nucleus

The IDE that ships while you sleep.

From IDE to CLI to GitHub — one AI that writes, reviews, and deploys your code. Agents run overnight so you wake up to pull requests, not to-do lists.

IDE

CLI

GitHub

Cloud Agents

Reviews

Set up a SaaS app with auth, payments, and analytics dashboard

I'll create parallel agents to build your full-stack SaaS app. Starting with auth and database schema simultaneously.

src/auth/middleware.ts

+ import { verifyJWT }from '@/auth/jwt';

+ import { rateLimit }from '@/lib/rate-limit';

export async function middleware(req) {

- // TODO: Add authentication

+ const token = req.headers.get('authorization');

+ const session = await verifyJWT(token);

Make sure Stripe webhooks handle subscription changes

Coding...

100%

https://my-saas-app.localhost/

Build a Renaissance atelier section — parchment bg, serif headline, 2×2 gallery wall

Generating 4 oils on linen in Caravaggio tenebrism for grid coherence.

studio.generate · gpt-image-2 · 4 imagesDone

+ components/home/renaissance-showcase.tsx

+ <section style={{ background:

+ 'radial-gradient(#f6ecd2, #d8c089)'

+ }}>

+ <h2 className="italic">

+ Four Panels. One Atelier.

+ </h2>

Add brass frames and Roman numerals on each panel

Coding...

· MMXXVI · Terramind Collection

Four Panels.One Atelier.

From the workshop of Terramind — four oils on linen, executed in the manner of the great masters. Each panel captures one of the instruments of our craft, struck in the same chiaroscuro hand.

View the CollectionOil on Linen · 1024 × 1024

Nucleus — AI Native IDE — Nucleus
AI Native IDE
№ I

Search — Answer Engine — Search
Answer Engine
№ II

Studio — Images · Video · Design — Studio
Images · Video · Design
№ III

Agents — Background Workers — Agents
Background Workers
№ IV

Auto Review

Already reviewed. Before you asked.

Every commit kicks off a full review inside the editor. The bug, the timing leak, the missing test — flagged before you push. Other tools wait for a PR. Nucleus catches it the moment the change lands locally.

Runs the moment you commit — no "kick off review" step

Reads the surrounding code, traces every reference

Findings land in the gutter, not a Slack message tomorrow

Click Implement; the patch writes itself

Same auto-review runs on every PR your team opens

feature/auth-middleware — last commit 2s ago

Auto-reviewed

feature/auth-middleware3 files changed+127 / −18

src/middleware/auth.ts

+84−2

22 const decoded = verify(token, SECRET);

23− if (now <= decoded.exp) {

23+ if (now < decoded.exp) {

24+ req.user = decoded.sub;

src/routes/login.ts

+31−16

46 const user = await users.findByEmail(email);

47− if (password === user.password) {

47+ if (timingSafeEqual(password, user.password)) {

src/lib/jwt.ts

+12−0

3 findings · caught on commit · not shipped yet

Off-by-one at expiry boundaryauth.ts:24

Timing-unsafe password comparelogin.ts:47

Dev-default JWT secret leaks to prodconfig/auth.ts:12

Other tools catch this after the PR. Nucleus caught it in the editor.

See how auto-review works

Security

Find the CVE before it finds you.

Scanners flood you with noise. Nucleus sweeps your repo against thousands of threat signatures, then launches hundreds of AI agents in parallel — each one opens the file, traces the data flow, and tells you what actually exploits. Local. Private. Ranked P0 → P2, patch ready.

Pipeline

signature sweep → AI auditor → triage → fix → verify

Candidates

47

100%

Investigated

47

100%

Verdicts

32

15 filt.

Triaged

24

75%

Fix linked

18

56%

Verified

12

38%

Total findings

10on this branch

By severity

Critical

2

High

4

Medium

3

Low

1

AI triage

P0

3

P1

3

P2

4

5 of 10 findings investigated by the agent — false positives dismissed, real ones prioritized.

Last scan2m ago · 1,284 files

10 shown

SQL injection via string concatenation

src/api/users/[id]/route.ts:42

criticalCWE-89P0true positiveAI investigation

Description

User-controlled `id` is concatenated directly into a raw SQL query, bypassing parameterization.

Code

const user = await db.query(
  `SELECT * FROM users WHERE id = '${req.params.id}'`,
)

Remediation

Use parameterized queries (prepared statements) or the ORM query builder. Never interpolate user input into SQL strings.

See the in-editor security audit

Automations

Self-improving.

Wire any event to any agent. Every result lands in one inbox — nothing slips through.

Triggers

Nucleus Agent

Routing

Outputs

Triggers

PR opened

GitHub

Issue opened

GitHub

CI failed

GitHub

Sentry error

Sentry

Daily · 9:00 AM

Cron

Weekly · Friday

Cron

Nucleus Agent

Routing

Outputs

PR review comment

Posted

Auto-fix PR

Opened

Sentry issue resolved

Closed

Standup digest

Sent

Release notes

Drafted

Unified inbox entry

Logged

Unified Inbox

Every automation result lands in your inbox. Mark as read, archive, or act on them. Write your own prompt, pick any trigger — done.

4 new results

See every automation template

Bring your agent. Or use ours.

Provider-agnostic, by design. Sign in with the Claude or ChatGPT subscription you already pay for, or let Terramind cover every model on a single bill.

RECOMMENDED · 01 of 03

Terramind

Managed by Terramind

No API key needed

Every model, one bill. Carbon and Helium coming soon.

Sign in, ship. No keys, no per-provider plumbing. Your seat covers Opus, GPT, Gemini and the rest today, with Carbon and Helium arriving soon. Cloud sandboxes and automations included.

Providers

50+ models · 10+ providers

Sandboxes

Cloud agents · async

Models

BYOK today · Carbon/Helium soon

ALTERNATIVE · 02 of 03BYO

Claude Code

by Anthropic

Your Claude subscription. Same Opus, deeper editor.

Nucleus speaks Claude’s SDK directly. The same model you trust in the CLI gets the IDE’s repo map, the review pipeline, and the inbox — without paying for it twice.

TRANSPORTLocal CLI via Claude SDK

MCP server support
Local execution
Streaming edits

ALTERNATIVE · 03 of 03BYO

Codex

by OpenAI

Your ChatGPT seat. Speed and breadth.

ACP-bridged Codex runs against your repo locally. Configurable reasoning effort, session caching, and the same inbox the cloud agents post into.

TRANSPORTLocal CLI via ACP protocol

Configurable reasoning effort
Session caching
Local execution

Coming Soon

Two models. Built for different jobs.

Carbon will reason through complex problems. Helium will write code at blazing speeds. Both arrive soon.

CC

Carbon 0.1

Coming Soon

Agentic reasoning · MoE architecture · Complex tasks

HeHe

Helium 0.1

Coming Soon

Superfast coding · Specialized

Cloud Mode

Ship code without opening your editor.

Mention @terramind from GitHub, Slack, the REST API, iOS, or Nucleus. A cloud agent spins up a sandbox, writes the code, and opens a PR — in parallel, around the clock.

Cloud Controlus-east-1 · live

0Active

7Queued

23Shipped

4m 12sAvg cycle

Incoming triggers

Active sandboxes

Shipped to main

/ 01

Triggers

GitHub, Slack, REST, iOS, and Nucleus desktop — anywhere you talk to your team.

/ 02

Sandbox

Isolated container per task. Secrets injected from your org vault. Auto-destroyed on completion.

/ 03

Result

A real PR on your target branch — reviewable, revertible, attributable. No magic.

Templates

Start with a template.

Production-ready web templates you can preview, customize, and deploy — without leaving Nucleus.

futuristic studio — Nucleus template preview

ai image generator — Nucleus template preview

architect portfolio — Nucleus template preview

luxury estate — Nucleus template preview

creative studio — Nucleus template preview

cloud platform — Nucleus template preview

crypto trading — Nucleus template preview

3d animated hero — Nucleus template preview

curated journal — Nucleus template preview

art director portfolio — Nucleus template preview

digital systems studio — Nucleus template preview

oblique studio — Nucleus template preview

frontend engineer — Nucleus template preview

empathy studio — Nucleus template preview

spatial design — Nucleus template preview

ai creative platform — Nucleus template preview

ai infrastructure — Nucleus template preview

architecture landing — Nucleus template preview

blockchain startup — Nucleus template preview

creative portfolio — Nucleus template preview

desert retreat — Nucleus template preview

digital architect — Nucleus template preview

futuristic ai — Nucleus template preview

interactive agency — Nucleus template preview

Browse all templates

FAQ

The honest answers.

Pricing

One subscription. Every Terramind product.

Your Terramind plan covers Nucleus, Chat, and everything we ship next. One bill, one account, every model.

View all plans

Free

Freeforever

Everything you need to start.

Limited agent messages
3 AI reviews per month
Basic model access
Community support

Plus

Individual

$20per month

For developers who ship daily.

Monthly credits included
Access to premium models
Cloud mode & automations
AI reviews included
Cheaper top-ups
Priority support

Business

Teams

$250per user / month

For engineering teams with security and compliance needs.

Everything in Plus
Admin controls & user management
Cheaper top-ups
Monthly credits per user
Dedicated support & SLA
Custom integrations

85+ models from 16 providers

Every model. One IDE.

TerramindAnthropicGoogleOpenAIDeepSeekMetaVercelxAIPerplexityInception LabsMinimaxZ-AINvidiaQwenSakanaThinking Machines

Claude Sonnet 4.5Claude Sonnet 4.6Claude Sonnet 5Claude Haiku 4.5Claude 3.5 HaikuClaude Opus 4.5Claude Opus 4.6Claude Opus 4.6 (Fast)Claude Opus 4.7Claude Opus 4.7 (Fast)Claude Opus 4.8Claude Opus 5Claude Fable 5Gemini 2.5 ProGemini 2.5 FlashGemini 2.5 Flash LiteGemini 3 ProGemini 3.1 ProGemini 3 FlashGemini 3.5 FlashGemini 3.6 FlashGemini 3.1 Flash LiteGemini 3.5 Flash LiteGemma 4DeepSeek R1DeepSeek V3.1DeepSeek V3.2DeepSeek V4 FlashDeepSeek V4 ProGPT-4oGPT-5 MiniGPT-5 NanoGPT-5.2GPT-5.2 ProGPT-5.4GPT-5.4 ProGPT-5.5GPT-5.5 ProGPT-5.6 SolGPT-5.6 TerraGPT-5.6 LunaGPT-5.4 NanoGPT-5.4 MiniGPT-5.2 ChatCodex 5.3Codex 5.2Codex 5.1Codex 5.1 MiniOSS 120BGrok 4Grok 4 FastGrok 4.1 FastGrok Code Fast 1Grok 4.20Grok 4.5Grok Build 0.1Nemotron 3 SuperMiniMax M2.5MiniMax M2.7MiniMax M3Muse Spark 1.1InklingFugu UltraGLM 5.1GLM 5.2GLM 5.2 FastGLM 5V TurboKimi K2Kimi K2.5Kimi K2.6Kimi K3GLM 5GLM 5 TurboQwen3 CoderQwen3 Coder FlashQwen3 Coder NextQwen 3.5 PlusQwen 3.5 FlashQwen 3.6 PlusQwen 3 MaxSonar Reasoning ProSonar ProSonar ReasoningSonarSonar Deep Research

Get started

Your code.On autopilot.

50+

models supported

10+

providers

3

platforms — Mac, Windows, Linux

Join Mac waitlist or open Terramind Agents

One editor. Claude Code, Codex, and Atlas side by side. Auto-review on every commit, cloud agents you trigger from GitHub or Slack, and a security audit that runs while you type.

Multi-provider — Claude Code, Codex, or Atlas on Carbon / Helium / Titanium

Cloud mode — trigger a sandbox from GitHub, Slack, or REST

Automations — event-driven agents on PRs, CI, Sentry, schedules

Auto review — findings land in the gutter the moment you commit

Available on

macOSWindowsLinux

Coding [AI]forAutomationsReviewsReviews

The IDE that ships while you sleep.

Four Panels.One Atelier.

Already reviewed. Before you asked.