Black Forest Labs (FLUX)
Visual AI models for image, video, audio, and action prediction, with API access and open-weights deployment options.
Freemium / API
Category
Research
AI search engines and research assistants that find, read, and cite sources and papers.
turbopuffer
Vector and full-text search on object storage for AI apps and large-scale search workloads.
Freemium / API
Qdrant
Open-source vector search engine for fast, scalable similarity search and AI retrieval.
Freemium / Open source / API
Exa
Search API for AI agents that need real-time web data, deep research, and structured content.
Freemium / API / MCP
Firecrawl
Web data API for AI agents to search, scrape, crawl, and interact with live websites.
Freemium / Open source / API / MCP
Hugging Face
A platform for building, sharing, and deploying machine learning models, datasets, and apps.
Freemium / API
Braintrust
AI observability for tracing production agents, running evals, and catching regressions before users see them.
Freemium / API / MCP
Arize AI
Agent observability, evaluation, and improvement platform for teams building and debugging AI agents.
Freemium
LangSmith
Agent and LLM observability platform for tracing, monitoring, and evaluation of AI agents.
Freemium / API
Langfuse
Open source observability and evals for AI agents, built for teams tracing, testing, and improving production LLM apps.
Freemium / Open source / API / MCP
Honeycomb
An observability platform for debugging software and AI systems with tracing, logs, metrics, and AI-assisted investigation.
Freemium
Recall
An AI knowledge base for summarizing, organizing, and chatting with videos, podcasts, PDFs, articles, and notes.
Freemium / API / MCP
ChatPDF
Chat with PDFs and other files to summarize, ask questions, and extract citations for students, researchers, and professionals.
Freemium / API
ResearchRabbit
An AI literature review tool for finding related papers, mapping citations, and tracking research trends.
Freemium
Undermind
AI co-researcher for scientific literature search, paper reading, and citation-backed research writing.
Freemium / MCP
SciSpace
AI research assistant for academics that searches 280M+ papers, runs literature reviews, and drafts papers with citations.
Freemium / API
Liner
AI agents for professionals to search with sources, research papers, and write clearly in one workflow.
Freemium
Kagi
A paid, ad-free search engine for people who want cleaner results and privacy controls.
Freemium / API