# Devin vs Janus (now Kairos)

Devin records 2,549,346 monthly visits with +1% month-over-month growth and Paid pricing. Janus (now Kairos) records 0 monthly visits with 0% growth and Contact for Pricing pricing.

| Metric | [Devin](https://openaitools.app/tool/devin) | [Janus (now Kairos)](https://openaitools.app/tool/janus) |
| :--- | :--- | :--- |
| Website URL | https://devin.ai | https://withjanus.com |
| Categories | AI Code Assistant, AI Agent, AI Developer Tools | AI Testing, AI Agent, AI Detector |
| Pricing Model | Paid | Contact for Pricing |
| Monthly Visits | 2,549,346 | 0 |
| MoM Growth Rate | +1% | 0% |
| Primary Market | United States | Global |
| Direct Visits | 1,386,401 | 0 |
| Review Score | 4.3 | 4.4 |
| Saved Count | 0 | 0 |
| Supported Platforms | website | Website |

## Devin

Devin sits at the agentic end of the AI coding spectrum. Instead of suggesting the next line, it takes a ticket-level goal - "add SAML SSO for enterprise customers" or "investigate this API latency spike" - explores the codebase across repositories, implements changes, runs tests, and explains the resulting pull request in plain language. It maintains a wiki-style map of the codebase so it can navigate unfamiliar services and keep documentation current as the code changes.

A defining feature is that Devin works on its own machine. It provisions Windows, Mac, and Linux virtual machines as needed, builds the project, exercises it in a browser, and can record itself clicking through the feature it just built. Long-running work continues in the cloud when your laptop is closed, and large tasks can be split across parallel agents that Devin coordinates and reports on.

For teams, Devin extends beyond one-off prompts. You can tag @Devin in Slack or Teams so it reads a thread and replies with a PR, set up automations that fix failing tests or patch vulnerable dependencies as they appear, and run security reviews. Pricing is seat-based and enterprise-oriented, with an Ultra tier for heavier autonomous usage, and Cognition has marketed large security-credit programs for enterprises.

**Pricing & Plans:** Paid, enterprise-oriented. Devin is sold on a per-seat subscription with tiered plans (including higher-capacity tiers for heavier autonomous use) plus usage allowances; Cognition also runs credit programs and enterprise agreements. Because plans and credit packages change, check Cognition's official pricing page for current numbers.

- **End-to-end autonomous coding:** Devin plans, writes code, runs tests, and opens pull requests across complex, multi-repository codebases without waiting for line-by-line approval.
- **Its own virtual machines:** Devin provisions Windows, Mac, and Linux VMs, builds and runs the project, and tests in a real browser - even recording itself using the feature it built.
- **Slack, Teams, and alert integration:** Mention @Devin in a thread to delegate a fix, or connect CI, PagerDuty, and issue trackers so it reacts to failures and alerts automatically.
- **Parallel cloud agents:** Delegate a large task and Devin splits it across parallel cloud agents that keep working after you close your laptop, then reports back.
- **Codebase wiki and automations:** Devin maintains a living map of the architecture and supports recurring automations such as dependency upgrades, test fixes, and security scans.

**Strengths:** Handles ticket-level autonomous work rather than only suggesting code completions; Tests in its own browser and VMs, which catches issues that pure code generation misses; Deep workflow integration with Slack, Teams, CI, and alerting tools; Keeps working in parallel cloud agents even when your machine is off

**Limitations:** Premium, seat-based pricing puts it out of reach for casual individual use; Complex or poorly specified tasks still need human review before merging; Maximum value depends on having a well-structured repo and clean test setup

[Profile (Markdown)](https://openaitools.app/tool/devin.md)

## Janus (now Kairos)

Janus began as a platform for battle-testing and improving AI agents, and the company has since rebranded to Kairos (withjanus.com now redirects to withkairos.co, and the site footer still credits 'Janus AI, Inc.'). Today Kairos positions itself as the AI deployment layer for critical industries — turning frontier models into specialized, reliable systems for enterprises in regulated sectors.

The core problem it addresses is trust. Off-the-shelf models are probabilistic and do not know your internal policies, so Kairos learns your rules from the people who actually run the process and deploys agents that hit very high accuracy thresholds. Evaluation, simulation and continuous learning sit at the heart of that loop: teams can build custom evaluations, simulate realistic scenarios, and detect failure classes such as hallucinations, rule violations and broken tool calls.

Deployment happens inside your own environment, so sensitive data never leaves your walls and accuracy compounds over time. Because the underlying intelligence is built on your processes and regulations, it becomes an asset you own rather than a rented generic model. The platform targets enterprises where high-stakes work leaves no margin for error.

**Pricing & Plans:** Contact for pricing. Kairos/Janus does not publish public plan tiers; pricing is arranged through a demo and tailored to enterprise deployment needs.

- **Custom agent evaluations:** Build bespoke test suites that mirror your real workflows so agents are measured against your rules, not generic benchmarks.
- **Hallucination & rule-violation detection:** Automatically flag fabricated answers, policy breaches and unsafe outputs before an agent goes live.
- **Tool-call failure detection:** Catch broken API calls, malformed arguments and failed agent tool usage that would silently break automations.
- **Simulation-based battle testing:** Run agents through realistic simulated scenarios to surface weaknesses without exposing real customers or data.
- **Private, sovereign deployment:** Deploy inside your own environment so data never leaves your walls and the resulting intelligence stays yours.

**Strengths:** Purpose-built for agent evaluation rather than generic LLM benchmarking; Detects concrete failure classes: hallucinations, rule violations and tool-call errors; Supports private, in-environment deployment for regulated industries; Custom evaluations tailored to your own processes and policies

**Limitations:** No public pricing or self-serve tier — you must talk to sales; Rebranding from Janus to Kairos can make documentation and links harder to follow; Best value for large enterprises; overkill for small hobby projects

[Profile (Markdown)](https://openaitools.app/tool/janus.md)

## Frequently Asked Questions

### How do Devin and Janus (now Kairos) compare in monthly traffic?

Devin has 2,549,346 monthly visits, while Janus (now Kairos) has 0. Traffic estimates describe audience size, not product quality.

### How do their growth rates compare?

Devin has a month-over-month growth rate of +1%; Janus (now Kairos) has 0%.

### How does pricing compare?

Devin: Paid. Paid, enterprise-oriented. Devin is sold on a per-seat subscription with tiered plans (including higher-capacity tiers for heavier autonomous use) plus usage allowances; Cognition also runs credit programs and enterprise agreements. Because plans and credit packages change, check Cognition's official pricing page for current numbers. Janus (now Kairos): Contact for Pricing. Contact for pricing. Kairos/Janus does not publish public plan tiers; pricing is arranged through a demo and tailored to enterprise deployment needs.

## Alternatives

| # | Tool Name | Monthly Visits | MoM Growth Rate | Pricing Model | Summary | Profile (Markdown) |
| :--- | :--- | :--- | :--- | :--- | :--- | :--- |
| 1 | [Cursor](https://openaitools.app/tool/cursor) | 23,297,751 | +8.4% | Freemium | An AI-native code editor providing advanced multi-file code generation and editing, though less fully autonomous end-to-end than Devin. | [.md](https://openaitools.app/tool/cursor.md) |
| 2 | [Manus](https://openaitools.app/tool/manus) | 19,195,779 | -1.7% | Free Trial | A general autonomous agent platform executing multi-step goals and browsers, suitable for broader web and coding workflows. | [.md](https://openaitools.app/tool/manus.md) |
| 3 | [Google Antigravity](https://openaitools.app/tool/google-antigravity) | 16,054,109 | +8.1% | Freemium | Google's agentic development platform running parallel AI coding agents across an IDE and CLI workspace. | [.md](https://openaitools.app/tool/google-antigravity.md) |
| 4 | [Replit](https://openaitools.app/tool/replit) | 10,016,437 | -7.7% | Freemium, Paid | A cloud development platform featuring an AI agent that builds, runs, and deploys full-stack apps automatically. | [.md](https://openaitools.app/tool/replit.md) |
| 5 | [Qoder](https://openaitools.app/tool/qoder) | 5,145,040 | +81.8% | Freemium, Free Trial, Free | An agentic coding platform and IDE plugin that reads entire codebases to execute complex multi-file tasks. | [.md](https://openaitools.app/tool/qoder.md) |
| 6 | [Kiro](https://openaitools.app/tool/kiro) | 3,330,476 | +4.6% | Freemium | An AWS spec-driven AI IDE and agent platform that plans, builds, reviews, and verifies software engineering work. | [.md](https://openaitools.app/tool/kiro.md) |
| 7 | [Command Code](https://openaitools.app/tool/command-code) | 2,358,177 | -12.1% | Freemium, Contact for Pricing | The coding agent that learns your coding taste | [.md](https://openaitools.app/tool/command-code.md) |
| 8 | [Orca](https://openaitools.app/tool/orca) | 1,025,891 | +1% | Free, Open Source, Enterprise on request | Run many coding agents in parallel, each in its own worktree | [.md](https://openaitools.app/tool/orca.md) |
| 9 | [KaneAI](https://openaitools.app/tool/kaneai) | 901,340 | +13.2% | Freemium, Paid, Contact for Pricing | GenAI-native end-to-end QA agent that plans, writes and heals tests in plain language | [.md](https://openaitools.app/tool/kaneai.md) |
| 10 | [Trae](https://openaitools.app/tool/trae) | 702,366 | -7.8% | Freemium | An AI-powered IDE and coding agent that indexes entire repositories to plan, build, and test software. | [.md](https://openaitools.app/tool/trae.md) |

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Source: https://openaitools.app/compare/devin-vs-janus

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