Kilo AI vs HARPA AI
A detailed comparison to help you choose between Kilo AI and HARPA AI.
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Verdict: Kilo AI wins
Kilo AI scores 4.2/5, edging out HARPA AI at 4.0/5. Developers and engineering teams who want an open-source coding agent they can inspect and extend, with the freedom to switch between 500+ hosted models, their own API keys, or local models without changing tools.
Kilo AI Kilo.ai - AI coding agent | HARPA AI Browser automation and data extraction powered by AI | |
|---|---|---|
| Rating | 4.2 (1 review) | 4.0 (1 review) |
| Pricing Model | paid | freemium |
| Starting Price | Pricing varies | Free tier available |
| Best For | Developers and engineering teams who want an open-source coding agent they can inspect and extend, with the freedom to switch between 500+ hosted models, their own API keys, or local models without changing tools. | Solo researchers, marketers and operators who want browser-based extraction, page monitoring and scheduled automation without writing code. |
| Free Tier | ||
| API Access | ||
| Team Features | ||
| Open Source | ||
| Tags | — | browser extensionno codefree tierbyok |
| Visit HARPA AI → |
Kilo AI
Pros
- + Model inference is billed at the providers' exact list prices with zero markup; the only surcharge is a 5% fee on card credit purchases (kilo.ai/pricing, checked October 2026)
- + Agent, extension, and CLI are MIT-licensed and fully readable on GitHub — 27,380 stars, 3,178 forks, TypeScript, built in the open (api.github.com/repos/Kilo-Org/kilocode)
- + Covers every surface I want: VS Code (1.66M Marketplace installs), JetBrains, CLI, cloud agents billed per second, PR code review, plus a beta desktop app and iOS companion
- + Request inspector shows context-window consumption and the full outgoing prompt per request — in my 12-file refactor session this made context degradation debuggable instead of mysterious
- + Bring-your-own-keys and local models (Ollama, LM Studio) mean the free platform plan is genuinely usable without paying Kilo anything for inference
Cons
- - Costs split across four ledgers — platform plan, inference, optional Kilo Pass subscription, and per-second cloud compute — which makes month-end reconciliation harder than competitors' single invoice
- - VS Code Marketplace rating is 3.89/5 from 217 reviews despite 1.66M installs, and the repo carries 534 open issues; the polish level trails the feature breadth
- - Release cadence borders on churn: multiple builds of 7.8.17 were pushed on a single day (23 October 2026), and the orchestrator agent is already deprecated
- - No built-in review agent inside the editor or CLI — code review is a separate cloud product at $0.33/hour (kilo.ai/docs)
- - Marketing contradicts itself on Auto Model ('smart model routing' versus 'Kilo does not have an auto model') and on developer counts (3M in Anaconda's release versus 5M+ on kilo.ai/cloud)
HARPA AI
Pros
- + Web monitors and scheduled commands run real automation — my price monitor fired on a listing change without me touching the tab, which no chat sidebar I tested does
- + Free DEMO tier let me test extraction, monitors and custom commands for two days of real use before paying anything
- + Three connection modes (CloudGPT, free web sessions to ChatGPT/Claude/Gemini, own API keys) meant I could route scheduled tasks through CloudGPT and casual chat through free sessions
- + Extraction to CSV worked first-run on clean listing pages once I enabled the scroll options for infinite-scroll results
- + Runs locally in the browser; the vendor states page data is not stored on its servers, which mattered for client dashboards
Cons
- - Scheduled commands and advanced automation are gated to the $19/month annual tier, so the automation use case costs more than the headline $12
- - Chrome/Chromium only — no Firefox or Safari, and no desktop application control at all
- - Web-session connections are rate-limited and broke twice for me when the underlying chat service changed its page layout
- - The $240 lifetime plan ships with only 30 Megatokens, less than half the cheapest monthly plan's annual allowance
- - No refunds per third-party reviews of the FastSpring checkout, so the DEMO caps are the only real trial
Frequently Asked Questions
Which is better, Kilo AI or HARPA AI?▼
Kilo AI scores higher at 4.2/5 vs 4.0/5 for HARPA AI, making it the better-rated option in our comparison.
What is the difference between Kilo AI and HARPA AI?▼
Kilo AI: Kilo is an open-source AI coding agent for VS Code, JetBrains, the terminal and the cloud, with access to a wide range of models and your own API keys. HARPA AI: HARPA AI is a Chrome extension that runs several AI models on the current page, summarising, extracting data and automating repeated browser tasks.
Is Kilo AI or HARPA AI more affordable?▼
Kilo AI starts at €0/mo, HARPA AI starts at €0/mo. Check the comparison table above for current pricing.
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