The Cosine Insider’s Guide
Everything we know about Cosine in one document: what it costs, its grades, getting a refund, getting help and what else to look at. Read it here, or keep a copy.
Cosine
The Insider’s Guide
Coding agent for terminal, desktop and cloud, with sovereign models
Every plan, grade, refund rule and rival among AI agents, read from Cosine’s own pages.
Made by Cosine · checked Nov 12, 2026 · toolgpa.com
Contents
- 01WelcomeWhat it is, who it suits, its grades and the ten things to know first
- 02What it costsEvery plan, the free plan, ways to pay less and how prices have moved
- 03What it doesIts main features, where it runs, what it works with and who makes it
- 04Where it standsIts grades against its category, and whether to keep it or make your own
- 05The alternativesThe tools it is most often weighed against, side by side
- 06Quick answersThe questions people ask about it, each answered in a line or two
- 07About ToolGPAWho made this guide, what else is on the site, and how to cite it
ToolGPA put this guide together from Cosine’s own pages, its app-store listings and our grades. Every fact in it is on Cosine’s page too, where it is kept up to date. Checked Nov 12, 2026.
Part 01 · Overview
Welcome
What it is, who it suits, its grades and the ten things to know first
1.8
GPA, above 11 of the 101 other AI agents we grade
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.
To get you started, here are 8 things to know about Cosine, taken from its own pages and our grades.
Different models burn credits at different rates, and the billing docs list different tiers from the pricing page.
- 1
Best for a command-line coding agent with a desktop app
Cosine is a coding agent with a CLI, a Mac desktop app and cloud agents, on credits.
- 2
Paid plans start at $19 a month
As its pricing page puts it: $19 per month, including 4M credits.
- 3
It runs on 4 platforms
Web, macOS, Windows and Linux.
- 4
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.
- 5
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.
- 6
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.
- 7
A 1.8 GPA, above 11 of 101
That is against the other AI agents we grade, on value, the free plan, features, ease of use and platforms.
- 8
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.
Cosine at a glance
- Pricing
- Paid, from $19 per month, including 4M credits
- Free plan
- No
- Free trial
- None stated
- Runs on
- Web, macOS, Windows, Linux
- Made by
- Cosine
- Category
- AI Agents
- Our grade
- 1.8 GPA, weak
The report card
Best for a command-line coding agent with a desktop app
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.
| Subject | Grade | Comment |
|---|---|---|
| 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. |
An A is worth 4 points, a B 3, a C 2, a D 1 and an F nothing. The GPA is the average of the five.
Who Cosine is for
- Fits if you want a coding agent in the terminal with a choice of models
- Works for a developer who wants cloud agents and an air-gapped option
Who it is not for
- Skip it if you want to try it free, as the cheapest plan is $19 a month
- Watch out: credits are used at different multipliers by model, so 4M credits is a moving target
- Not for you if you want a Windows or Linux desktop app, as the desktop page offers Mac only
- Watch out: the pricing page lists three tiers, the billing docs six, with different names
Good to know
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.
Part 02 · Pricing
What it costs
Every plan, the free plan, ways to pay less and how prices have moved
$19
A month to start
Cosine is a paid product, starting at $19 per month, including 4M credits.
No free plan or trial on the pricing page.
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 cosine.sh on Nov 12, 2026.
Part 03 · Features
What it does
Its main features, where it runs, what it works with and who makes it
4
Places it runs: Web, macOS, Windows and Linux
Coding agent for terminal, desktop and cloud, with sovereign models. Here is what it does, as its own site describes it, and what it covers: AI features, workflow automation, AI agents.
CLI, desktop, cloud agents, swarm mode and model choice, but pages disagree on the tiers.
- 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.
Where it runs
- Web
- macOS
- Windows
- Linux
What it works with
- GitHub
- Slack
- ChatGPT
- Claude Max
Cosine is made by Cosine.
Part 04 · Standing
Where it stands
Its grades against its category, and whether to keep it or make your own
11/101
Other AI agents it is graded above
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.
Each grade against the category
Every bar is all 102 AI agents we grade, cut by the letter each got. Cosine’s own letter is outlined.
- BValue for moneyAbove 74 of 101
- FFree plan and trialAbove 0 of 101
- CFeaturesAbove 1 of 101
- CEase of useAbove 14 of 101
- CPlatforms and integrationsAbove 0 of 101
Price against what you get
Each dot is one of 70 AI agents. Further left costs less; higher up scores better on features, ease of use and platforms. Cosine is the marked dot.
What paid plans start at, a month (each step along is roughly double) →
Keep it, or make your own?
Whether this is something you could build for yourself with an AI app builder, and what you would give up.
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.
What you could not
- An AI agent, with the models and the safeguards behind it.
- Connections to other products, each kept working as those products change.
- Apps for macOS, Windows and Linux that stay in step with each other.
What this rests on. Cosine’s listing: what it does, where it runs, what it plugs into and what it costs. It is a judgement about the kind of software this is. We have not built a replacement for it, and making your own means looking after it too. How we decide, and every tool’s verdict.
Part 05 · Alternatives
The alternatives
The tools it is most often weighed against, side by side
Devin, OpenHands, Factory, Jules and Amp
The 5 tools Cosine is most often weighed against, with where each one differs from it.
- 2.4GPA
Devin
Free plan · from $20/mo
Autonomous software engineer that runs in the cloud or locally.
- Devin has a free plan. Cosine does not.
- Cosine also covers workflow automation.
- 2.4GPA
OpenHands
Free plan · from $500/mo
Open-source platform for AI coding agents and automations.
- OpenHands has a free plan. Cosine does not.
- Only Cosine lists macOS, Windows and Linux apps.
- OpenHands is open source and self-hostable, according to its own site.
- 2.6GPA
Factory
Free plan · from $20/mo
Coding agents called Droids for desktop, terminal and web.
- Factory has a free plan. Cosine does not.
- 2.6GPA
Jules
Free plan
Google's asynchronous coding agent that opens pull requests.
- Jules has a free plan. Cosine does not.
- Only Cosine lists macOS, Windows and Linux apps.
- 2.4GPA
Amp
Free plan · from $20/mo
Coding agent that runs in cloud machines it calls orbs.
- Amp has a free plan. Cosine does not.
- Only Amp lists iOS and Android apps.
Part 06 · Questions
Quick answers
The questions people ask about it, each answered in a line or two
12
Questions, each answered in a line or two
The short version of everything above, for when you only need the answer. Each one is told in full in its part of the guide.
Is Cosine free?
No. Cosine is a paid product, starting at $19 per month, including 4M credits.
How much does Cosine cost?
Cosine lists 3 plans. Starter: $19 per month, for 4M credits a month.
What platforms does Cosine work on?
Cosine is available on Web, macOS, Windows and Linux.
Does Cosine have an Android app?
No Android app was listed when its pages were read on Nov 12, 2026. Cosine is listed for Web, macOS, Windows and Linux.
Does Cosine have an iPhone app?
No iPhone app was listed when its pages were read on Nov 12, 2026. Cosine is listed for Web, macOS, Windows and Linux.
Is Cosine open source?
Cosine is not described as open source on its own site, as read on Nov 12, 2026.
What does Cosine integrate with?
Cosine's listing names GitHub, Slack, ChatGPT and Claude Max. A listing names up to eight integrations, so it may connect to more.
Who makes Cosine?
Cosine is made by a company of the same name.
What are the alternatives to Cosine?
The closest alternatives to Cosine in our directory are Devin, OpenHands, Factory, Jules and Amp.
How does Cosine compare with other AI agents?
Cosine's GPA of 1.8 is higher than 11 of the 101 other AI agents we grade, and level with 14.
Is Cosine good value for money?
ToolGPA grades Cosine B for value for money. 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.
Could I make my own version of Cosine?
To replace Cosine you would be making an AI agent, with the models and the safeguards behind it.
Where this guide comes from
The prices, plans, platforms and features were read from Cosine’s own pages on Nov 12, 2026, and the grades were given on Nov 12, 2026. 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.
Every tool we list gets five grades, A to F, each with its reason, and a GPA that averages them. How each is decided is at toolgpa.com/grades. This guide is ToolGPA’s own work; it is not made, paid for or approved by Cosine. Prices change, so check cosine.sh before you buy.
Part 07 · About
About ToolGPA
Who made this guide, what else is on the site, and how to cite it
5,038
Tools graded, in 95 categories
ToolGPA grades software the way a school report grades a pupil: five subjects, a letter for each with the reason written beside it, and a GPA that averages them. Prices, plans and platforms are read from each maker’s own pages and dated, so you always know how fresh a figure is.
Every grade, review and ranking on ToolGPA is our own judgement. No company can pay for a grade or change one. Every tool on the site has a guide like this one, free to download and pass on. It all lives at toolgpa.com.
5,038
tools graded
95
categories
739
price changes on record
579
apps priced in 12 countries
What else is on toolgpa.com
- Cosine, kept up to dateEverything in this guide, with prices and grades as they are todaytoolgpa.com/tools/cosine
- How grades are givenThe rules behind every letter and every GPAtoolgpa.com/grades
- Value chartsWhat each tool costs against what it scores, for every categorytoolgpa.com/charts
- CompareAny two tools side by side, plan by plantoolgpa.com/compare
- Price changesEvery price rise and cut on record, each with its sourcetoolgpa.com/price-changes
- Prices by countryWhat apps cost on the App Store in 12 countriestoolgpa.com/prices-by-country
- Pay lessEvery public discount: yearly billing, students, nonprofitstoolgpa.com/save
- Keep or makeWhich tools are worth paying for, and which you could build yourselftoolgpa.com/keep-or-make
Scan for the live page
Prices and grades as they are today
Quoting this guide?
Please name ToolGPA and link to the live page, so readers can check the figures for themselves:
ToolGPA, "Cosine: The Insider's Guide", checked Nov 12, 2026. https://toolgpa.com/tools/cosine
Know someone choosing between AI agents?
Send them this guide: toolgpa.com/tools/cosine/guide
ToolGPA elsewhere: youtube.com/@toolgpa
See our other guides
The best-graded AI agents after Cosine, each with an Insider's Guide of its own.
- AI Agents Insider's GuideEvery one of the 102 AI agents we grade, compared
- Genspark Insider's GuideAI workspace with an agent for research, slides, sheets and docs3.2 GPA
- Manus Insider's GuideGeneral AI agent for research, slides, websites and browser tasks3.2 GPA
- OpenClaw Insider's GuideOpen-source personal AI agent you run yourself and message in chat3.2 GPA
Choosing software? Every tool graded, every price dated.
Compare tools at toolgpa.com ›Everything in this guide is ToolGPA’s own summary of what Cosine’s pages, its app-store listings and public reviews said on the dates shown. Grades are our judgement under the rules at toolgpa.com/grades. Every grade, review and ranking on ToolGPA is our own judgement. No company can pay for a grade or change one. Cosine is a trademark of its owner, and this guide is not made, paid for or approved by Cosine. Prices and plans change: check cosine.sh before you buy.