Compare AI tools

	Claude Code S	OpenRouter S	Genspark A	Perplexity S
Tagline	Anthropic's CLI agent. Opus-powered, operates on your repo directly.	One API, every model. Pay-as-you-go, no subscriptions.	AI agent for deep search. Generates Sparkpages — full mini-reports.	AI search done right. Cited answers, not chat theater.
Category	Coding	Dev Platform	Research	Research
Pricing	Part of Claude Pro/Max/Team plans	Pay per token — model-dependent	Free + $25/mo Plus	Free + $20/mo Pro
Best for	Developers who want an agent, not autocomplete. Large refactors, tests, docs.	Developers experimenting across models. Apps that want fallback logic.	Travel planning, shopping comparisons, deep research where you want an artifact back.	Replacing Google for any question where you want a cited answer in seconds.
Strengths	Runs locally, edits your actual files Strong on large codebases with 1M context Great at multi-step tasks	300+ models from one endpoint Automatic fallbacks between providers No subscription — just pay what you use	Sparkpages = curated multi-source mini-articles Agent can book, compare, shop Autopilot agent for long tasks	Sources every claim Fast, current answers Pro Search runs multi-step research Spaces for persistent context
Weaknesses	Terminal-based — learning curve Can't be used without Claude subscription	Slight markup over direct API Some provider features not exposed	Early-stage — rough edges Less reliable than Perplexity for simple questions	Not a general chatbot Answers can be shallow on complex topics
Kai's verdict	S-tier if you live in the terminal. Different shape than Cursor — complementary, not replacement.	S-tier for model-shopping. I use this for every prototype before committing.	A-tier. Bet on this one — the Sparkpage format is genuinely new.	S-tier for search. I use it before Google now. If you're still Googling everything, try this for a week.
Link	Open →	Open →	Open →	Open →