# Cosine review (2026): is it worth $19 a month? > Coding agent for terminal, desktop and cloud, with sovereign models Checked Nov 12, 2026 ยท graded Nov 12, 2026 by ToolGPA. Cosine is a UK-based AI lab that sells a coding agent through a command-line tool, a Mac desktop app and a cloud workspace, all drawing on one shared pool of credits. It also trains its own Lumen models and offers air-gapped and single-tenant deployments for regulated organizations. The agent can work with models from several providers as well as Lumen. - **Category:** AI Agents - **Made by:** Cosine - **Website:** https://cosine.sh - **Runs on:** Web, macOS, Windows, Linux - **Who should skip it:** Skip it if you want to try it free, as the cheapest plan is $19 a month. - **Facts last checked:** Nov 12, 2026 ## Pricing As of Nov 12, 2026, Cosine is a paid product, starting at $19 per month, including 4M credits. - **Pricing model:** Paid - **Free plan:** None. - **Free trial:** None listed. | Plan | Price | What you get | | --- | --- | --- | | Starter | $19 per month, for 4M credits a month | For solo developers and side projects. Extra credits cost $6.50 per 1M. | | Team | $199 per month, for 47M credits a month | For growing teams. Extra credits cost $5.00 per 1M. The billing docs name this $199 tier Scale and list a $99 tier for 23M credits. | | Enterprise | $999 per month, for 240M credits a month | For highly regulated industries. Extra credits cost $4.50 per 1M. The pricing page also invites teams to ask about a more custom arrangement. | Read from https://cosine.sh/pricing on Nov 12, 2026. Prices change, so confirm with Cosine before buying. ## Key features - **CLI coding agent:** The cos command runs the agent in a terminal alongside your editor and tests. Every agent turn is saved as a lightweight git commit, so changes can be undone. - **Desktop app:** A native app for working on local project folders, with plan review, diffs, and built-in browser and terminal panels. The product page offers a Mac download. - **Cloud agents:** Tasks can run in remote workspaces, each session in an isolated microVM, so long jobs continue after your laptop is closed. The site says 20 or more agents can run in parallel. - **Swarm mode and memory:** An orchestrator can spawn child agents that work in parallel, and project conventions persist across sessions. - **Model choice:** The model list includes Cosine's own Lumen models along with models from OpenAI, Anthropic and Google, each with a credit multiplier. - **Sovereign and air-gapped deployment:** For regulated organizations the company offers fully air-gapped, managed single-tenant and public cloud options. ## Good for - Developers who want a terminal agent that can also hand long tasks to the cloud - Teams in regulated industries that need private or air-gapped deployment - Users who want to switch between several model providers under one credit pool ## Worth knowing - There is no free plan or free trial on the pricing page; the cheapest plan is $19 a month. - Usage is billed in credits, and different models use them at different multipliers, so how far 4M credits goes depends on the model chosen. - The pricing page lists three tiers, while the billing docs list six (Starter, Builder, Team, Scale, Professional and Enterprise) with different names for the $199 and $999 tiers. - The desktop page offers a Mac download only; the CLI docs cover macOS (Apple Silicon only), Linux and Windows. ## ToolGPA grades **GPA: 1.8 out of 4**, graded Nov 12, 2026. Cosine is a coding agent with a CLI, a Mac desktop app and cloud agents, on credits. Starter is $19 a month for 4M credits and there is no free plan or trial. Different models burn credits at different rates, and the billing docs list different tiers from the pricing page. - **Value for money: B.** Starter is $19 a month for 4M credits, at the top of the cheaper quarter, but how far credits go depends on the model. - **Free plan and trial: F.** No free plan or trial on the pricing page. - **Features: C.** CLI, desktop, cloud agents, swarm mode and model choice, but pages disagree on the tiers. - **Ease of use: C.** No store rating on record. The CLI is the main way in and the docs cover install and sign-in. - **Platforms and integrations: C.** Web, Mac, Windows and Linux with four integrations; the desktop page offers Mac only and there are no phone apps. These are ToolGPA's own grades. Graded from this listing, whose facts were read from Cosine's own pages on 12 November 2026. Not based on using the product, and shorter than our full reviews. ## Where it stands among AI agents - Cosine's GPA of 1.8 is higher than 11 of the 101 other AI agents we grade, and level with 14. - It stands best on value for money (B, above 74 of 101) and worst on free plan and trial (F, above 0). - Its paid plans start at $19 a month, against a middle price of $22.13 for the category: 12 of the 65 others that charge start lower. - On features, ease of use and platforms it scores 2.0 out of 4. 11 tools score higher and cost less. The category's chart of price against score: https://toolgpa.com/charts/ai-agents ## Keep it, or make your own? **Keep it.** To replace Cosine you would be making an AI agent, with the models and the safeguards behind it. That is not a weekend's work, with an AI app builder or without one. That makes this kind of software worth paying for, not this one in particular: 76 of the 101 other AI agents grade higher. It costs $228 a year. - You could not: An AI agent, with the models and the safeguards behind it. - You could not: Connections to other products, each kept working as those products change. - You could not: Apps for macOS, Windows and Linux that stay in step with each other. A judgement by ToolGPA from this listing, by rules that are the same for every tool. Nothing was built to test it. ## Works with GitHub, Slack, ChatGPT, Claude Max **Tags:** AI agents, AI features, Workflow automation ## Alternatives - [Devin](https://toolgpa.com/tools/devin): Autonomous software engineer that runs in the cloud or locally. [Compare](https://toolgpa.com/compare/cosine-vs-devin) - [OpenHands](https://toolgpa.com/tools/openhands): Open-source platform for AI coding agents and automations. [Compare](https://toolgpa.com/compare/cosine-vs-openhands) - [Factory](https://toolgpa.com/tools/factory): Coding agents called Droids for desktop, terminal and web. [Compare](https://toolgpa.com/compare/cosine-vs-factory) - [Jules](https://toolgpa.com/tools/jules): Google's asynchronous coding agent that opens pull requests. [Compare](https://toolgpa.com/compare/cosine-vs-jules) - [Amp](https://toolgpa.com/tools/amp): Coding agent that runs in cloud machines it calls orbs. [Compare](https://toolgpa.com/compare/amp-vs-cosine) ## Sources The prices, plans, platforms and features above were read from these pages on Nov 12, 2026: - https://cosine.sh/pricing - https://cosine.sh - https://cosine.sh/cli - https://cosine.sh/desktop - https://cosine.sh/cloud - https://cosine.sh/about - https://cosine.sh/docs/billing - https://cosine.sh/docs/cli/install-and-authenticate-the-cli - https://cosine.sh/docs/desktop Page: https://toolgpa.com/tools/cosine Listed by ToolGPA (toolgpa.com).