The Stack Index / Reasoning
serves AI Layer
Reasoning
The models and agent runtimes that score, decide, draft and build.
Cheap to adopt, worthless without context beneath it.
8tools placed
8operator verified
0author recommended
Claude6 ops
Semantic scoring of reviews as buying signals. Vinayak Mishra, Slang AI, SMYS 1
Self-serve
Claude Code5 ops
Orchestration environment in plan mode. Alexander Shartsis, Skyp, SMYS 2
Self-serve
ChatGPT4 ops
Generative engine optimised for. Jason Patel, Open Forge AI, GTM 34
Self-serve
Cursor
AI code editor. Alex Bilmes, Endgame, GTM 46
Self-serve
Gemini
Model already in employee use. Mark van Oppen, SecureAuth, GTM 47
Self-serve
OpenClaw
Runs five personal agents. Gorish Aggarwal, Sybill, GTM 48
Self-serve
Perplexity
AI search surface tracked. Jason Patel, Open Forge AI, GTM 34
Self-serve
Relevance AI
Hosts the multi-agent system behind the rep-facing checkbox. Angelo Quiambao, Intellistack, SMYS 7
Mid-market
New operator stacks, as they are published
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