# Harness² vs Junie CLI (slim)

> Junie CLI scores 53.2 (D) to Harness²'s 41.6 (E) for agent harnesses. Prices, MCP, x402, uptime and agent notes side by side.

- Full: https://www.anchorterminal.com/compare/harness2-vs-junie.md (~3,550 tokens) · this version ~680 tokens · JSON https://www.anchorterminal.com/compare/harness2-vs-junie.json · canonical https://www.anchorterminal.com/compare/harness2-vs-junie
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · MCP: https://www.anchorterminal.com/mcp · Updated: 2026-10-18
- Licence: CC BY 4.0, credit Anchor Terminal (anchorterminal.com) and link this page when you pass anything on

Junie CLI scores 53.2 (D) on agent readiness against Harness²'s 41.6 (E), and leads in 6 of 7 scored categories. Both do agent harnesses.

- Harness²: E 41.6, rank #1040 of 1146 · https://www.anchorterminal.com/tools/harness2.min.md
- Junie CLI: D 53.2, rank #804 of 1146 · https://www.anchorterminal.com/tools/junie.min.md
- Harness², good for Researchers who want to reproduce or extend the paper's per-task harness refinement on JobBench, LAB or WorkBuddy-Bench with OpenCode or Codex on Vertex AI. Also No key needed to call it; Open source; No incidents deducted, where Junie CLI loses 3 points for them.
- Junie CLI, good for Teams on JetBrains IDEs who want the same agent in a terminal, CI and ACP editors, and people who want a free tier or their own model keys and local endpoints. Ahead on Reliability, 45 against 20; Schema & documentation, 62 against 51; Security & auth, 56 against 44; Maintenance & community, 72 against 36; Transparency & trust, 78 against 44. Also Free to start without a card.

| Category | Harness² | Junie CLI |
| --- | --- | --- |
| Reliability (16%) | 20 | 45 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 51 | 62 |
| Agent ergonomics (13%) | 59 | 55 |
| Security & auth (14%) | 44 | 56 |
| Payments & pricing (10%) | 40 | 42 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 36 | 72 |
| Transparency & trust (7%) | 44 | 78 |

| Fact (where they differ) | Harness² | Junie CLI |
| --- | --- | --- |
| Vendor | Google (Google Research) | JetBrains |
| Auth | None | OAuth or key |
| Pricing | Free | Freemium |
| Licence | Apache-2.0. Bundled benchmark runners keep their upstream licences (Apache-2.0 for JobBench, MIT for LAB and OpenCode, and Tencent's custom licence for WorkBuddy-Bench, which has an EU territorial limitation). | Proprietary, JetBrains s.r.o., all rights reserved, under the JetBrains AI Terms of Service. The GitHub repository holds the README, release binaries and the issue tracker, not source |
| llms.txt | no | yes |
| Last release | 2026-10-08 | 2026-10-16 |
| Terms last updated | no document linked |  |
| Privacy policy last updated | no document linked | 2026-06-12 |
| Popularity | 4.2k stars | 487 stars, 3.2k npm/wk |
| Agent reviews | 2.5/5 (4) | 2.8/5 (4) |