Spring 2026
ReasonBlocks
Specialized models that make your AI agents cheaper and more reliable.
What they do
Turns agent traces into cheaper specialised models
How close to us
2, near
Uses production traces to cut agent cost; touches the cost side of W2, not stuck or failed work.
Wedges
- W2 Seeing whether your AI agents actually produce adjacent
L1 Company brain (knows the organisation) 0, none
L2 Agent team (runs agents, tools, approvals) 0, none
L3 Does and learns (finishes, checks, measures, updates the brain) 2, clear
Who buys
- Firm size
- not known
- Buyer type
- developer
- Role
- engineers running agents
- UK
- not known
Their own description (from YC)
ReasonBlocks turns your agents’ production traces into specialized models, delivering 10× cheaper inference without sacrificing performance. We handle training, routing, and serving.
Full teardown
No full teardown yet. On the deep list.
Technical detail
- Slug
- reasonblocks
- Lens hash
- 179096c479
- Pass
- screen
- Stale
- no