Compare AI tools

	Perplexity S	DeepInfra A	GitHub Copilot B	OpenRouter S
Tagline	AI search done right. Cited answers, not chat theater.	Blazing-fast, pay-as-you-go inference API for open-source LLMs and multimodal models, now plugged directly into the Hugging Face ecosystem.	Microsoft/GitHub's autocomplete. Deep VS Code + JetBrains integration.	One API, every model. Pay-as-you-go, no subscriptions.
Category	Research	Dev Platform	Coding	Dev Platform
Pricing	Free + $20/mo Pro	Free $5 credit on signup, then pay-as-you-go from $0.06/M tokens	Free (limited) + $10/mo Pro + $19/mo Business	Pay per token — model-dependent
Best for	Replacing Google for any question where you want a cited answer in seconds.	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.	Teams with GitHub already. Devs who don't want to change IDEs.	Developers experimenting across models. Apps that want fallback logic.
Strengths	Sources every claim Fast, current answers Pro Search runs multi-step research Spaces for persistent context	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	Great enterprise story Works in your existing IDE Chat + autocomplete	300+ models from one endpoint Automatic fallbacks between providers No subscription — just pay what you use
Weaknesses	Not a general chatbot Answers can be shallow on complex topics	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	Less agentic than Cursor/Claude Code Model quality varies	Slight markup over direct API Some provider features not exposed
Kai's verdict	S-tier for search. I use it before Google now. If you're still Googling everything, try this for a week.	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.)	B-tier. Solid for autocomplete but the category moved past it. Pick Cursor unless you can't.	S-tier for model-shopping. I use this for every prototype before committing.
Link	Open →	Open →	Open →	Open →