JulesvsKortix
Generated from the two spec rows. Green marks the better value where a spec has a clear direction. Everything else is just different.
Jules
Google · Autonomous SWE
#141MCP
Panel
5.72 spec wins
- Reliability
- 5.3
- Usefulness
- 5.8
- Cost
- 6.3
- Longevity
- 5.3
“Fifteen free tasks a day, as long as you are over 18 and using a personal Gmail rather than the company account.”
Kortix
Kortix · Autonomous SWE
#156OSSMCP
Panel
6.44 spec wins
- Reliability
- 6.3
- Usefulness
- 6.7
- Cost
- 6.2
- Longevity
- 6.5
“Suna grew up, changed its name to Kortix, and now files change requests like the rest of us.”
Spec by spec
| Spec | Jules | Kortix |
|---|---|---|
| Architecture | ||
| Category | Autonomous SWE | Autonomous SWE |
| Runs | cloud, sandbox | cloud, sandbox |
| Platforms | web, macos, linux, windows | macos, linux, web |
| Context window | not documented | not documented |
| Protocols | ||
| MCP client | Yes | Yes |
| MCP server | No | No |
| Capabilities | ||
| Runs terminal commands | Yes | Yes |
| Multi-file edits | Yes | Yes |
| Git operations | Yes | Yes |
| Browser control | YesThe default VM image includes Playwright and chromedriver, and Jules renders a front end and returns screenshots to verify its work (https://jules.google/docs/environment). | Yes |
| Sandboxed execution | YesEach task gets a secure, short-lived Ubuntu VM with internet access (https://jules.google/docs/environment). | Yes |
| Multi-agent orchestration | No | Yes |
| Headless / CI mode | YesScriptable through `jules remote new --repo ... --session "..."` and the REST API (https://jules.google/docs/cli/reference). | No |
| Models | ||
| Backbone | Gemini 3 Flash, Gemini 3.1 Pro | any |
| Bring your own model | NoJules runs only on Google-hosted Gemini models; there is no provider picker, custom base URL, gateway or cloud deployment of your own. | Yes |
| Local models | NoTasks run in a Google-hosted VM with no configurable model endpoint, so no local LLM can be used. | No |
| Cost | ||
| Pricing model | subscription | mixed |
| Starts at | $19.99/mo | $40/mo |
| Free tier | Yes | Yes |
| Bring your own key | NoAccess comes from a Google AI plan; no Gemini API key or Google Cloud project of your own can be attached. | Yes |
| Openness | ||
| Open source | No | Yes |
| License | proprietary | Apache-2.0 |
| GitHub stars | n/a | 20,240 |
Which one would each critic pick
| Critic | Jules | Kortix | Pick |
|---|---|---|---|
| El Juez | — | — | not enough reviews |
| El Amigo | 6.8 | 6.3 | Jules — Use Jules for the backlog you never get to, fifteen free tasks a day on a personal Google account, and do not adopt it as a team tool because the paid plans do not accept business accounts yet. |
| El Crítico | 6.3 | 5.5 | Jules — Jules runs your repo in a VM you cannot inspect on a model you cannot choose, and the failure mode is a pull request built on an environment that never installed correctly. |
| El Profesor | 6.3 | 6.5 | Kortix — Configuration is a kortix.yaml scaffolded into a repository you own, with agents, shared skills, company memory and connectors stored as versioned files rather than platform state. |
| La Inversora | 6.0 | 7.0 | Kortix — Twenty thousand stars and a free tier metered at 200 sandbox credits, with enterprise terms behind a conversation, is open-source distribution converted into a compute margin. |
| La Jefa | 4.8 | 5.5 | Kortix — Team seats run $40 each, so sixty is $2,400 a month before consumption, and the code sits on vendor machines unless we take on running it ourselves. |
| El Hacker | 4.3 | 7.8 | Kortix — Apache-2.0, an MCP client, and a curl install for a thing I can also self-host, which is most of what I ask, minus any local model path. |
Picks are derived from each critic's own scores. Humans vote on matchups on the duels page.