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Side-by-side: what they do, what they cost, what Kai actually thinks. Pass up to 4 tools via ?tools=claude,chatgpt,gemini.
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Windsurf
A
DeepInfra
A
Aider
A
ChatGPT Operator
B
TaglineCodeium's agentic IDE. Cascade agent + strong free tier.Blazing-fast, pay-as-you-go inference API for open-source LLMs and multimodal models, now plugged directly into the Hugging Face ecosystem.Terminal-based AI pair programmer. Git-aware, model-flexible.OpenAI's browser agent. Clicks and types on websites for you.
CategoryCodingDev PlatformCodingAgents
PricingFree + $15/mo ProFree $5 credit on signup, then pay-as-you-go from $0.06/M tokensFree (open source) + whatever API you useIncluded with ChatGPT Pro $200/mo
Best forDevelopers who want Cursor-like power for less money.Backend developers and ML engineers who want the cheapest reliable inference for open-weight LLMs in production, especially those already living inside the Hugging Face ecosystem.Developers who want open-source tooling with full control.Power users willing to pay $200/mo for a browser bot.
Strengths
  • Cheaper than Cursor
  • Cascade agent for multi-file tasks
  • Solid free tier
  • Among the cheapest per-token rates for open-source models — consistently undercuts Together AI and Fireworks on small models
  • OpenAI-compatible API means zero migration headache from existing stacks
  • Now a first-class Hugging Face Inference Provider, so HF-native workflows (SDKs, Playground, agent harnesses) get DeepInfra with a one-line swap
  • Runs on H100/A100 and NVIDIA Blackwell GPUs with auto-scaling and 99.982% uptime SLA on dedicated tier
  • Supports LoRA adapter deployments and private custom model hosting, not just public models
  • Works in any terminal
  • Auto-commits changes with meaningful messages
  • Works with any model (Claude, GPT, local)
  • Minimal learning curve
  • Actually uses websites — fills forms, clicks, checks out
  • Built into ChatGPT
  • Good for repetitive web tasks
Weaknesses
  • Smaller community
  • Model selection more limited
  • Primarily developer/API-first — no meaningful consumer-facing product or chat UI to speak of
  • Model breadth (77 tracked) lags behind aggregators like OpenRouter or Replicate for niche or newly-released models
  • No free tier beyond the $5 signup credit; requires a card or prepayment to continue
  • Terminal-only
  • Less agentic than Claude Code
  • Setup on Windows is fiddly
  • Slow vs doing it yourself
  • Breaks on complex auth flows
  • $200/mo gate
Kai's verdictA-tier. Close second to Cursor. If $5/mo matters, start here.DeepInfra is the quiet workhorse of the inference API space — serious price performance on H100s, a genuinely clean OpenAI-compatible API, and now a native HF provider makes it a strong default choice for any team running open-source models at scale. (Verdict pending Phi's full review.)A-tier. The right answer if you want open-source + terminal-native + model-agnostic.B-tier. Still early. Manus is more flexible for less money.
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