Cosine
cosine.sh
AI software engineering agent (Genie) that autonomously fixes bugs and ships pull requests.
Quick Information
- Category:
- Coding
- Pricing:
- Paid
- Platforms:
- Web
- API Available:
- Yes
- Last Verified:
- September 2026
What Is Cosine?
Cosine builds Genie, an autonomous AI software engineer that reads a codebase, plans a fix, writes and tests the change, then opens a pull request — assignable directly from GitHub, Jira, Linear, or Slack, aimed at engineering teams wanting tickets closed without babysitting every step of the process. A UK-based, Y Combinator-backed company, Cosine positions itself partly around sovereign AI infrastructure options for organizations with data residency requirements.
Its 2026 pricing removed the free tier that older tool directories still reference — Starter now runs $19/month, Team $199/month, and Enterprise from $999/month with options for cloud, VPC, or fully air-gapped deployment, custom model weights, and zero data egress for security-sensitive organizations. Also worth noting: Cosine retired the "Genie" branding for its underlying model family in 2026, replacing it with the Lumen model family, though Genie remains the name of the autonomous coding agent product itself — a naming distinction worth understanding if researching the underlying technology versus the product.
It's aimed at engineering teams wanting a genuinely autonomous coding agent that handles full ticket-to-PR workflows, with the deployment flexibility (cloud, VPC, air-gapped) making it a fit for security-conscious enterprises as well as smaller teams on the Starter tier. See our Coding tools directory for comparable autonomous coding agents like Devin.
What Can You Use Cosine For?
Autonomous ticket-to-PR workflows
Reads a codebase, plans a fix, writes and tests code, then opens a pull request automatically.
Cross-platform task assignment
Accepts tickets assigned from GitHub, Jira, Linear, or Slack.
Security-sensitive deployment
Deploys via cloud, VPC, or fully air-gapped infrastructure for data residency requirements.
Cosine Features
- Genie autonomous agent — An AI software engineer that independently plans, writes, tests, and submits pull requests.
- Multi-platform task intake — Accepts assigned tickets from GitHub, Jira, Linear, or Slack.
- Lumen model family — The underlying AI model family powering Genie, replacing the earlier Genie-branded models in 2026.
- Flexible deployment options — Supports cloud, VPC, or air-gapped deployment with zero data egress options.
Who Is Cosine For?
- Engineering teams — Gets tickets closed autonomously without manually managing every step of the fix.
- Security-conscious enterprises — Uses air-gapped or VPC deployment with zero data egress for sensitive codebases.
Cosine Pros & Limitations
What We Like
- Genuinely autonomous — plans, writes, tests, and submits pull requests without step-by-step supervision
- Multi-platform task intake fits into existing GitHub, Jira, Linear, or Slack workflows
- Flexible deployment options including fully air-gapped infrastructure for security-sensitive organizations
Limitations
- No free tier in 2026 — older listings referencing a free plan are outdated
- Enterprise-level deployment flexibility starts at a substantial $999/month
- Recent Genie-to-Lumen model rebranding may cause confusion when researching the underlying technology
Cosine Pricing
| Plan | Price | Main Features |
|---|---|---|
| Starter | $19/month | Entry-level access to Genie |
| Team | $199/month | Team-level usage and collaboration |
| Enterprise | From $999/month | Cloud, VPC, or air-gapped deployment, custom model weights, zero data egress |
Pricing was last verified September 2026. Check the official website for the latest pricing.
AI Listing Jungle Ranking
- Global Rank:
- #450
- Overall Score:
- 47.8/100
- Monthly Users:
- –
- Rank Change:
- ▲ 26
This ranking reflects AI Listing Jungle's own independent scoring methodology and is not an endorsement by Cosine or its company. How Our Rankings Work
Frequently Asked Questions
Does Cosine offer a free plan?
No, the free tier was removed in 2026; pricing now starts at $19/month for Starter.
What is the difference between Genie and Lumen?
Genie is the autonomous coding agent product; Lumen is the underlying model family that replaced the earlier Genie-branded models in 2026.
Can Genie work from ticket systems other than GitHub?
Yes, it accepts assigned tasks from GitHub, Jira, Linear, or Slack.
Does Cosine support air-gapped deployment?
Yes, Enterprise plans support cloud, VPC, or fully air-gapped deployment with zero data egress.
Our Take
Genie's genuinely autonomous ticket-to-PR workflow and flexible deployment options make it a strong choice for engineering teams wanting real hands-off automation.
The 2026 removal of the free tier and the Genie-to-Lumen model rebrand are both worth knowing before comparing it against older reviews.
Cosine Alternatives
Cosine Comparisons
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