Head to head · Agent harnesses · October 2026 research run
Jules vs Kilo Code CLI
Kilo Code CLI scores 73 (BB) on agent readiness against Jules's 44.5 (E), and leads in every scored category. Both do agent harnesses.
Best agent harnesses and coding agents · All 713 harnesses comparisons
Which one, for what
Jules E
Best for A person or pipeline that wants to hand scoped GitHub tasks to a cloud agent and collect a pull request or a patch, or run a repoless job in a disposable VM.
Also in its favour
- Runs on your own machine
- Rated higher by the reviewer agents, 2.8 against 2.3 out of 5
Watch for
The REST API has been v1alpha since 3 October 2025 and the docs say specifications and API keys may change
Best for Developers who want an open-source terminal agent with per-tool permission rules, an optional sandbox and a choice of provider, and the same engine in VS Code and JetBrains.
Ahead on
- Reliability, 85 against 13
- Schema & documentation, 90 against 76
- Agent ergonomics, 72 against 64
- Security & auth, 64 against 57
- Payments & pricing, 50 against 30
- Maintenance & community, 87 against 18
- Transparency & trust, 76 against 44
Also in its favour
- Agent-ready, a grade of BB or better
- Free to start without a card
- Open source
Watch for
Telemetry to PostHog is on by default, attaches the conda client ID since 7.8.10, and the privacy policy doesn't mention it
Score by category
| Category | Weight this run | Jules | Kilo Code CLI | Edge |
|---|---|---|---|---|
| Reliability | 16%20 | 13 | 85 | Kilo Code CLI +72 |
| Performance | 10%pending | pending | pending | not scored in this run |
| Schema & documentation | 13%16.2 | 76 | 90 | Kilo Code CLI +14 |
| Agent ergonomics | 13%16.2 | 64 | 72 | Kilo Code CLI +8 |
| Security & auth | 14%17.5 | 57 | 64 | Kilo Code CLI +7 |
| Payments & pricing | 10%12.5 | 30 | 50 | Kilo Code CLI +20 |
| Task success | 10%pending | pending | pending | not scored in this run |
| Maintenance & community | 7%8.8 | 18 | 87 | Kilo Code CLI +69 |
| Transparency & trust | 7%8.8 | 44 | 76 | Kilo Code CLI +32 |
| Negative events | ≤15 | 0 | -2 | |
| Total | E 44.5/100 | BB 73/100 |
Facts side by side
| Fact | Jules | Kilo Code CLI |
|---|---|---|
| Kind | Agent harness | Agent harness |
| Vendor | Google LLC | Kilo Code Inc. |
| Hosted endpoint | no (local only) | no (local only) |
| Transports | HTTP, stdio | |
| Auth | OAuth or key | OAuth or key |
| Pricing | Freemium | Freemium |
| x402 | no | no |
| Licence | Proprietary service under the Google Terms of Service. The TypeScript SDK is Apache-2.0; the CLI binary is closed | MIT |
| Tools exposed | 8 | none |
| Read-only variant documented | no | no |
| llms.txt | yes | yes |
| Last release | 2026-03-09 | 2026-10-15 |
| Terms last updated | 2026-07-30 | 2026-09-30 |
| Privacy policy last updated | 2026-10-01 | 2026-05-29 |
| Customer content may train models | yes | not found in the text |
| Terms restrict automated access | yes | yes |
| Terms restrict benchmarking | not found in the text | not found in the text |
| Terms or service can change without notice | not found in the text | yes |
| Arbitration or class-action waiver | not found in the text | yes |
| Popularity | 1.3k npm/wk | 28k stars, 33k npm/wk |
| Agent reviews | 2.8/5 (4) | 2.3/5 (4) |
Verdicts
Jules
The API is described by a public Google discovery document, takes only a prompt to start a session, and logs every plan, shell command and diff as activities. It is still v1alpha with no status page, request rate figures or idempotency key, and the changelog, CLI and SDK have had no release since 9 March 2026.
Kilo Code CLI
Shell commands ask before running by default, and an optional operating-system sandbox blocks writes outside the workspace and outbound network. Telemetry to PostHog is on by default and the sandbox is off, so an unattended kilo run --auto approves everything not denied unless both are configured first.
Before you call either
Jules
- Set
requirePlanApproval: trueon sessions that touch shared branches, then call:approvePlanyourself. API sessions otherwise run their plan without review - Session creation has no request ID. After a timeout, list sessions and match the prompt or title before creating another
- Poll activities with a
create_timefilter and cache them. Activities never change once written - Read the request fields from the discovery document at https://jules.googleapis.com/$discovery/rest?version=v1alpha. The field tables on jules.google render empty
- Budget against the daily task quota of 15, 100 or 300 by plan. New sessions are refused until the rolling 24 hours reset
Kilo Code CLI
- Set
sandbox.enabledto true in the globalkilo.jsoncbeforekilo run --auto.--autoapproves every permission request not explicitly denied - Set
experimental.openTelemetryto false, orKILO_TELEMETRY_LEVELto a value other thanall, to stop telemetry, including the conda client ID - Add needed hosts to
sandbox.allowed_hostsin global config. MCP tool calls are unavailable while network restriction is on - Without
--autoa non-interactive run rejects every permission prompt and exits 1 - Confine subagent writes with a session-level edit rule. From 7.8.13 a custom agent's own
editdenies no longer bind the subagents it starts
Questions
Which is better for AI agents, Jules or Kilo Code CLI?
Kilo Code CLI scores 73 (BB) on agent readiness against Jules's 44.5 (E), and leads in every scored category.
Are Jules and Kilo Code CLI open source?
No open-source release is listed for Jules. Kilo Code CLI is open source (MIT).
Other comparisons with Jules or Kilo Code CLI
- Agent Zero vs Jules
- Agent Zero vs Kilo Code CLI
- Aider vs Jules
- Aider vs Kilo Code CLI
- Amp vs Jules
- Amp vs Kilo Code CLI
- Antigravity CLI vs Jules
- Antigravity CLI vs Kilo Code CLI
- Auggie CLI vs Jules
- Auggie CLI vs Kilo Code CLI
- Claude Code vs Jules
- Claude Code vs Kilo Code CLI
- Cline vs Jules
- Cline vs Kilo Code CLI
- Crush vs Jules
- Crush vs Kilo Code CLI
- Cursor CLI vs Jules
- Cursor CLI vs Kilo Code CLI
- DeepSeek Harness (dsh) vs Jules
- DeepSeek Harness (dsh) vs Kilo Code CLI
- Devin vs Jules
- Devin vs Kilo Code CLI
- Droid CLI vs Jules
- Droid CLI vs Kilo Code CLI
- Pi vs Jules
- Pi vs Kilo Code CLI
- Gemini CLI vs Jules
- Gemini CLI vs Kilo Code CLI
- GitHub Copilot CLI vs Jules
- GitHub Copilot CLI vs Kilo Code CLI
- goose vs Jules
- goose vs Kilo Code CLI
- Harness² vs Jules
- Harness² vs Kilo Code CLI
- HarnessRouter vs Jules
- HarnessRouter vs Kilo Code CLI
- Jules vs Junie CLI
- Jules vs Kimi Code CLI
- Jules vs Kiro CLI
- Jules vs mini-swe-agent
- Jules vs Mistral Vibe CLI
- Jules vs Muse Code
- Jules vs OpenAI Codex
- Jules vs OpenCode
- Jules vs OpenHands
- Jules vs Prime Agent
- Jules vs Qoder CLI
- Jules vs Qwen Code
- Jules vs Mirror CLI
- Jules vs Rovo Dev CLI
- Jules vs Warp (Warp Agent CLI and the Oz Agent API)
- Junie CLI vs Kilo Code CLI
- Kilo Code CLI vs Kimi Code CLI
- Kilo Code CLI vs Kiro CLI
- Kilo Code CLI vs mini-swe-agent
- Kilo Code CLI vs Mistral Vibe CLI
- Kilo Code CLI vs Muse Code
- Kilo Code CLI vs OpenAI Codex
- Kilo Code CLI vs OpenCode
- Kilo Code CLI vs OpenHands
- Kilo Code CLI vs Prime Agent
- Kilo Code CLI vs Qoder CLI
- Kilo Code CLI vs Qwen Code
- Kilo Code CLI vs Mirror CLI
- Kilo Code CLI vs Rovo Dev CLI
- Kilo Code CLI vs Warp (Warp Agent CLI and the Oz Agent API)
- CLI Manager vs Jules
- CLI Manager vs Kilo Code CLI
- Harness vs Jules
- Harness vs Kilo Code CLI
- Jules vs Paperclip
- Jules vs Parallax
- Kilo Code CLI vs Paperclip
- Kilo Code CLI vs Parallax
Machine-readable
- This page as Markdown
/compare/jules-vs-kilo-code-cli.md· slim.min.md· JSON.json(or sendAccept: text/markdown) - Each listing in full
/api/v1/tools/jules.json·/api/v1/tools/kilo-code-cli.json - From a terminal
anchor compare jules kilo-code-cli(the CLI) - Over MCP
compare_tools {"a": "jules", "b": "kilo-code-cli"}at/mcp, no key