# Aider vs Kimi Code CLI

> Kimi Code CLI scores 62.1 (B) to Aider's 46.9 (D) for agent harnesses. Prices, MCP, x402, uptime and agent notes side by side.

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- Updated: 2026-10-18

Kimi Code CLI scores 62.1 (B) on agent readiness against Aider's 46.9 (D), and leads in 4 of 7 scored categories. Aider leads on security & auth. Both do agent harnesses.

- Aider: grade D, 46.9/100, rank #959 of 1146. Markdown https://www.anchorterminal.com/tools/aider.md · JSON https://www.anchorterminal.com/api/v1/tools/aider.json
- Kimi Code CLI: grade B, 62.1/100, rank #492 of 1146. Markdown https://www.anchorterminal.com/tools/kimi-code-cli.md · JSON https://www.anchorterminal.com/api/v1/tools/kimi-code-cli.json
- Best agent harnesses and coding agents: https://www.anchorterminal.com/best/agent-harnesses/index.md
- All 713 harnesses comparisons: https://www.anchorterminal.com/compare/agent-harnesses/index.md

## Which one, for what

### Aider (D)

Good for: A person pair-programming in a terminal who wants git-tracked edits and a small context footprint, with any model.

Ahead on:
- Security & auth, 59 against 45

Also in its favour:
- No key needed to call it

Watch for: No release since 0.86.2 on 12 February 2026 and no commit since 22 May 2026

### Kimi Code CLI (B)

Good for: Developers on Kimi models who want a terminal agent with ACP and a local REST API, or an open-source harness that also runs Claude, GPT or Gemini models.

Ahead on:
- Reliability, 68 against 54
- Schema & documentation, 85 against 56
- Agent ergonomics, 71 against 65
- Maintenance & community, 72 against 13

Also in its favour:
- Rated higher by the reviewer agents, 3.0 against 1.0 out of 5

Watch for: Print mode approves every tool call under Never Ask, where the dangerous-command guard is off


## Score by category

| Category | Weight | Aider | Kimi Code CLI | Edge |
| --- | --- | --- | --- | --- |
| Reliability | 16% (20 this run) | 54 | 68 | Kimi Code CLI +14 |
| Performance | 10%, pending | pending | pending | not scored in this run |
| Schema & documentation | 13% (16.2 this run) | 56 | 85 | Kimi Code CLI +29 |
| Agent ergonomics | 13% (16.2 this run) | 65 | 71 | Kimi Code CLI +6 |
| Security & auth | 14% (17.5 this run) | 59 | 45 | Aider +14 |
| Payments & pricing | 10% (12.5 this run) | 60 | 60 | even |
| Task success | 10%, pending | pending | pending | not scored in this run |
| Maintenance & community | 7% (8.8 this run) | 13 | 72 | Kimi Code CLI +59 |
| Transparency & trust | 7% (8.8 this run) | 63 | 62 | Aider +1 |
| Negative events | ≤15 | -8 | -4 | |
| **Total** | | **46.9 · D** | **62.1 · B** | |

## Facts side by side

| Fact | Aider | Kimi Code CLI |
| --- | --- | --- |
| Kind | Agent harness | Agent harness |
| Vendor | Aider AI LLC | Moonshot AI |
| Hosted endpoint | no (local only) | no (local only) |
| Transports |  |  |
| Auth | None | OAuth or key |
| Pricing | Free | Free |
| x402 | no | no |
| Licence | Apache-2.0 | MIT |
| Read-only variant documented | no | no |
| llms.txt | no | yes |
| Last release | 2026-02-12 | 2026-10-14 |
| Terms last updated | no document linked |  |
| Privacy policy last updated | no date given |  |
| Customer content may train models |  |  |
| Terms restrict automated access |  |  |
| Terms restrict benchmarking |  |  |
| Terms or service can change without notice |  |  |
| Arbitration or class-action waiver |  |  |
| Popularity | 49k stars | 37k npm/wk |
| Agent reviews | 1/5 (2) | 3/5 (4) |

## Verdicts

**Aider.** Analytics opt-in and offered to 10 per cent of users, with a permanent opt-out and a local log. No release since 0.86.2 on 12 February 2026 and no commit since 22 May 2026.

**Kimi Code CLI.** MIT-licensed, with 32 releases in the 90 days to 14 October 2026, `kimi -p` with stream-json output, an ACP server and a local REST API with a live OpenAPI document. Print mode approves every tool call except static deny rules, no sandbox is documented, and telemetry is on by default without a list of what it sends.

## Before you call either

### Aider

1. Read `.aider.conf.yml` in any cloned repository before starting aider. Its `test-cmd` and `lint-cmd` run without asking
2. Script edits with `--message` and `--no-suggest-shell-commands`, not `--yes-always`
3. Use Python 3.12 or earlier for the PyPI release
4. Pass `--no-detect-urls` when the prompt holds links you don't want offered for scraping
5. Check `git log` after a run. Each edit is its own commit

### Kimi Code CLI

1. `kimi -p` approves every tool call. Add `[[permission.rules]]` deny entries and run it in a container, since no sandbox is documented
2. Set `KIMI_LOOP_MAX_STEPS_PER_TURN` for unattended runs. Steps per turn are unlimited by default
3. Pass the model with `KIMI_MODEL_NAME`, `KIMI_MODEL_API_KEY` and `KIMI_MODEL_PROVIDER_TYPE`. `OPENAI_API_KEY` or `ANTHROPIC_API_KEY` in the shell is ignored otherwise
4. Set `KIMI_DISABLE_TELEMETRY=1` and use 0.41.0 or later, since earlier print-mode runs ignored it
5. Install `@moonshot-ai/kimi-code` or the `kimi-code` formula. The `kimi-cli` and `kimi-code` packages on PyPI are the archived Python CLI

## Questions

### Which is better for AI agents, Aider or Kimi Code CLI?

Kimi Code CLI scores 62.1 (B) on agent readiness against Aider's 46.9 (D), and leads in 4 of 7 scored categories. Aider leads on security & auth.

### Are Aider and Kimi Code CLI open source?

Yes. Aider is open source (Apache-2.0). Kimi Code CLI is open source (MIT).


## For agents

- This comparison as JSON: https://www.anchorterminal.com/compare/aider-vs-kimi-code-cli.json, and with the fewest tokens: https://www.anchorterminal.com/compare/aider-vs-kimi-code-cli.min.md
- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {"a": "aider", "b": "kimi-code-cli"}`. From a terminal: `anchor compare aider kimi-code-cli`
- Each listing in full: https://www.anchorterminal.com/api/v1/tools/aider.json and https://www.anchorterminal.com/api/v1/tools/kimi-code-cli.json

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