Perplexity
Answer-first search interface layering citations atop hosted LLM inference; competes with Google and OpenAI consumer surfaces.
Perplexity’s product promise is epistemic: show sources, reduce hallucination risk, and deliver usable summaries. The business promise is distributional: capture query share without owning an OS. Regulatory and publisher dynamics in 2026 complicate both stories.
This hub ties the company to the model families it routes through most visibly and logs disputes about attribution, licensing, and benchmark gaming.
Models shipped
- GPT-4 — *Multimodal generalist that reset 2023 expectations for instruction-following and tool use at scale.*
- Gemini 2.x — *Google DeepMind multimodal Gemini generation integrated across Android, Workspace, and Vertex-class APIs.*
- Claude 3.5 Sonnet — *Anthropic mid-2024 workhorse tuned for coding and long-context tasks at competitive latency.*