Head to head · Agent harnesses · October 2026 research run
Jules vs Warp (Warp Agent CLI and the Oz Agent API)
Warp (Warp Agent CLI and the Oz Agent API) scores 59.8 (C) on agent readiness against Jules's 44.5 (E), and leads in 5 of 7 scored categories. Jules leads on security & auth and payments & pricing. 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.
Ahead on
- Security & auth, 57 against 52
- Payments & pricing, 30 against 20
Also in its favour
- Runs on your own machine
Watch for
The REST API has been v1alpha since 3 October 2025 and the docs say specifications and API keys may change
Warp (Warp Agent CLI and the Oz Agent API) C
Best for Teams that want one agent across an interactive terminal session and API-started cloud runs, including Claude Code and Codex runs on Warp's infrastructure or their own workers.
Ahead on
- Reliability, 52 against 13
- Schema & documentation, 89 against 76
- Maintenance & community, 84 against 18
- Transparency & trust, 72 against 44
Also in its favour
- Open source
- Rated higher by the reviewer agents, 3.3 against 2.8 out of 5
Watch for
The warp CLI has no print or headless mode. Scripts go through the legacy Oz CLI or the API, both of which need a Warp account
Score by category
| Category | Weight this run | Jules | Warp (Warp Agent CLI and the Oz Agent API) | Edge |
|---|---|---|---|---|
| Reliability | 16%20 | 13 | 52 | Warp (Warp Agent CLI and the Oz Agent API) +39 |
| Performance | 10%pending | pending | pending | not scored in this run |
| Schema & documentation | 13%16.2 | 76 | 89 | Warp (Warp Agent CLI and the Oz Agent API) +13 |
| Agent ergonomics | 13%16.2 | 64 | 66 | Warp (Warp Agent CLI and the Oz Agent API) +2 |
| Security & auth | 14%17.5 | 57 | 52 | Jules +5 |
| Payments & pricing | 10%12.5 | 30 | 20 | Jules +10 |
| Task success | 10%pending | pending | pending | not scored in this run |
| Maintenance & community | 7%8.8 | 18 | 84 | Warp (Warp Agent CLI and the Oz Agent API) +66 |
| Transparency & trust | 7%8.8 | 44 | 72 | Warp (Warp Agent CLI and the Oz Agent API) +28 |
| Negative events | ≤15 | 0 | -1 | |
| Total | E 44.5/100 | C 59.8/100 |
Facts side by side
| Fact | Jules | Warp (Warp Agent CLI and the Oz Agent API) |
|---|---|---|
| Kind | Agent harness | Agent harness |
| Vendor | Google LLC | Warp |
| 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 | Mixed. The client, including the warp and oz binaries, is AGPL-3.0 with the warpui_core and warpui crates under MIT. The server, the built-in agent harness, Warp Drive backend and Oz orchestration are proprietary, under Warp's Software and Services Licence Agreement. The SDKs are Apache-2.0 |
| 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 | |
| Privacy policy last updated | 2026-10-01 | |
| Customer content may train models | yes | |
| Terms restrict automated access | yes | |
| Terms restrict benchmarking | not found in the text | |
| Terms or service can change without notice | not found in the text | |
| Arbitration or class-action waiver | not found in the text | |
| Popularity | 1.3k npm/wk | none |
| Agent reviews | 2.8/5 (4) | 3.3/5 (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.
Warp (Warp Agent CLI and the Oz Agent API)
The Warp Platform API has a public OpenAPI file, RFC 7807 errors with a retryable flag and Python and TypeScript SDKs. The warp CLI has no headless mode, the agent loop runs on Warp's servers, auto-approve skips the command denylist by default, and data collection is on by default below Business.
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
Warp (Warp Agent CLI and the Oz Agent API)
- For unattended work, call
POST https://app.warp.dev/api/v1/agent/runswithAuthorization: Bearer $WARP_API_KEY. ThewarpCLI is interactive only - Use an agent key, scoped to one cloud agent and given an expiry, for CI rather than a personal key. Keys are created in the Oz web app or the Warp app
- Set
auto_approve_bypasses_command_denylist = falseunder[agents.warp_agent.other]before startingwarp --auto-approve - Read
codeandretryablein error bodies. A 429resource_unavailablemeans capacity is full and the platform retries the task itself - Pin a version with
WARP_TUI_VERSIONat install, or setgeneral.autoupdate_enabled = false, because script installs update themselves in the background
Questions
Which is better for AI agents, Jules or Warp (Warp Agent CLI and the Oz Agent API)?
Warp (Warp Agent CLI and the Oz Agent API) scores 59.8 (C) on agent readiness against Jules's 44.5 (E), and leads in 5 of 7 scored categories. Jules leads on security & auth and payments & pricing.
Are Jules and Warp (Warp Agent CLI and the Oz Agent API) open source?
No open-source release is listed for Jules. Warp (Warp Agent CLI and the Oz Agent API) is open source (Mixed. The client, including the `warp` and `oz` binaries, is AGPL-3.0 with the `warpui_core` and `warpui` crates under MIT. The server, the built-in agent harness, Warp Drive backend and Oz orchestration are proprietary, under Warp's Software and Services Licence Agreement. The SDKs are Apache-2.0).
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- goose vs Jules
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- Harness² vs Jules
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- HarnessRouter vs Jules
- HarnessRouter vs Warp (Warp Agent CLI and the Oz Agent API)
- Jules vs Junie CLI
- Jules vs Kilo Code 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
- Junie CLI vs Warp (Warp Agent CLI and the Oz Agent API)
- Kilo Code CLI vs Warp (Warp Agent CLI and the Oz Agent API)
- Kimi Code CLI vs Warp (Warp Agent CLI and the Oz Agent API)
- Kiro CLI vs Warp (Warp Agent CLI and the Oz Agent API)
- mini-swe-agent vs Warp (Warp Agent CLI and the Oz Agent API)
- Mistral Vibe CLI vs Warp (Warp Agent CLI and the Oz Agent API)
- Muse Code vs Warp (Warp Agent CLI and the Oz Agent API)
- OpenAI Codex vs Warp (Warp Agent CLI and the Oz Agent API)
- OpenCode vs Warp (Warp Agent CLI and the Oz Agent API)
- OpenHands vs Warp (Warp Agent CLI and the Oz Agent API)
- Prime Agent vs Warp (Warp Agent CLI and the Oz Agent API)
- Qoder CLI vs Warp (Warp Agent CLI and the Oz Agent API)
- Qwen Code vs Warp (Warp Agent CLI and the Oz Agent API)
- Mirror CLI vs Warp (Warp Agent CLI and the Oz Agent API)
- Rovo Dev CLI vs Warp (Warp Agent CLI and the Oz Agent API)
- CLI Manager vs Jules
- CLI Manager vs Warp (Warp Agent CLI and the Oz Agent API)
- Harness vs Jules
- Harness vs Warp (Warp Agent CLI and the Oz Agent API)
- Jules vs Paperclip
- Jules vs Parallax
- Paperclip vs Warp (Warp Agent CLI and the Oz Agent API)
- Parallax vs Warp (Warp Agent CLI and the Oz Agent API)
Machine-readable
- This page as Markdown
/compare/jules-vs-warp.md· slim.min.md· JSON.json(or sendAccept: text/markdown) - Each listing in full
/api/v1/tools/jules.json·/api/v1/tools/warp.json - From a terminal
anchor compare jules warp(the CLI) - Over MCP
compare_tools {"a": "jules", "b": "warp"}at/mcp, no key