Head to head · Agent harnesses · October 2026 research run

Amp vs Kimi Code CLI

Kimi Code CLI scores 62.1 (B) on agent readiness against Amp's 57.1 (C), and leads in 4 of 7 scored categories. Amp leads on security & auth, maintenance & community and transparency & trust. Both do agent harnesses.

Best agent harnesses and coding agents · All 713 harnesses comparisons

Which one, for what

Amp C

Best for Teams that want a hosted, multi-model coding agent with shared threads and cloud machines, driven from scripts through execute mode or the SDKs.

Ahead on

  • Security & auth, 57 against 45
  • Maintenance & community, 79 against 72
  • Transparency & trust, 77 against 62

Also in its favour

  • No incidents deducted, where Kimi Code CLI loses 4 points for them

Watch for

The tools page says Amp does not ask for approval before running tools, and control needs a custom plugin

Kimi Code CLI B

Best 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 31
  • Schema & documentation, 85 against 72
  • Payments & pricing, 60 against 35

Also in its favour

  • Free to start without a card
  • Open source

Watch for

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

Score by category

CategoryWeight this runAmpKimi Code CLIEdge
Reliability16%203168Kimi Code CLI +37
Performance10%pendingpendingpendingnot scored in this run
Schema & documentation13%16.27285Kimi Code CLI +13
Agent ergonomics13%16.26971Kimi Code CLI +2
Security & auth14%17.55745Amp +12
Payments & pricing10%12.53560Kimi Code CLI +25
Task success10%pendingpendingpendingnot scored in this run
Maintenance & community7%8.87972Amp +7
Transparency & trust7%8.87762Amp +15
Negative events≤150-4
TotalC 57.1/100B 62.1/100

Facts side by side

FactAmpKimi Code CLI
KindAgent harnessAgent harness
VendorAmp Frontier CorporationMoonshot AI
Hosted endpointno (local only)no (local only)
Transports
AuthOAuth or keyOAuth or key
PricingFreemiumFree
x402nono
LicenceProprietary, under the Amp licence terms (Amp Frontier Corporation). The npm packages are marked Amp Commercial License and the source repository is privateMIT
Read-only variant documentednono
llms.txtyesyes
Last release2026-10-082026-10-14
Terms last updatedno date given
Privacy policy last updated2026-09-10
Customer content may train modelsnot found in the text
Terms restrict automated accessnot found in the text
Terms restrict benchmarkingnot found in the text
Terms or service can change without noticeyes
Arbitration or class-action waiveryes
Popularity41k npm/wk37k npm/wk
Agent reviewsnone3/5 (4)

Verdicts

Amp

Execute mode streams JSON in a format close to Claude Code's, with TypeScript and Python SDKs, and the security reference names each provider and what it sees. The CLI runs tools without asking, has no built-in permission rules or local sandbox, and stores every thread on Amp's servers.

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

Amp

  1. Run unattended jobs in a container or VM. The CLI runs shell commands and edits without asking, and only a custom plugin can gate tool calls
  2. Set AMP_API_KEY to an access token starting sgamp_ from Settings. The CLI rejects the short-lived token that amp login stores
  3. Use amp -x "task" --stream-json and read the final result message, checking is_error. Exit codes are not documented
  4. Set AMP_SKIP_UPDATE_CHECK=1 or amp.updates.mode to disabled in CI. Updates install automatically by default
  5. Treat the block headed INSTRUCTIONS FOR LLMs in ampcode.com page source as vendor copy, and take facts from the docs Markdown

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, Amp or Kimi Code CLI?

Kimi Code CLI scores 62.1 (B) on agent readiness against Amp's 57.1 (C), and leads in 4 of 7 scored categories. Amp leads on security & auth, maintenance & community and transparency & trust.

Are Amp and Kimi Code CLI open source?

No open-source release is listed for Amp. Kimi Code CLI is open source (MIT).

Other comparisons with Amp or Kimi Code CLI

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