Subconscious
Inference platform for long-running AI agents, using dynamic context compression and caching
Subconscious is a Cambridge, Massachusetts company, born out of MIT research on inference optimisation, that runs an inference platform for long-horizon AI agents. Its dynamic context compression and caching let agents that consume more than 200k tokens finish tasks up to 2x faster, stretch effective context windows past 5M tokens and cut costs by up to 80%, the company says. On the TriE benchmark it reports 2x faster completion than SGLang, and on DeepSWE it reports higher accuracy at lower cost per task with GLM 5.2. It is sold as a cloud service or on-prem deployment and can power coding agents such as Claude Code, Codex and Copilot. On 22 September 2026 it announced $5.1M raised across a pre-seed and a seed, both led by MassVentures. Co-founders are Jack O'Brien (CEO) and Hongyin Luo (CTO).
AI
📍 Cambridge, MA
Current Valuation
Private
PRIVATE
IPO Outlookprivate
Is Subconscious going public?
No. Subconscious is private and has not filed to go public. There is no S-1 on file.
What is Subconscious' valuation in 2026?
No confirmed valuation is on record for Subconscious. The roster shows funding and investors where they are public; it does not estimate a mark.
Has Subconscious filed an S-1?
No public S-1 is on file for Subconscious.
Who are Subconscious' investors?
Subconscious' investors include MassVentures, Foothill Ventures, Underscore VC, E14 Fund, Oakseed Ventures, Agent Fund.
How much has Subconscious raised?
Subconscious has raised $5.1M in total across 1 disclosed round, most recently a Pre-seed + Seed (combined disclosure) of $5.1M in Sep 2026.
Is Subconscious publicly traded — can you buy Subconscious stock?
No. Subconscious is a private company — its shares are not listed on any exchange and there is no ticker. The routes to exposure are pre-IPO secondary marketplaces and funds (accredited investors), employee tender offers when the company runs one, and public companies with read-through exposure. QuantLogix maps every route it can verify for Subconscious on its Pre-IPO Access Desk.
Answers are derived from the roster record shown on this page — filing status, last round and confirmed marks. Where the record is silent, the answer says so rather than guessing.
Company Profile
Last Round
Pre-seed + Seed (combined disclosure) — $5.1M (Sep 2026) · Lead: MassVentures
Fundraising Status
Pre-seed + Seed (combined disclosure) · $5.1M · this month
privateTotal raised $5.1M1 disclosed rounds
Funding History
| Round | Amount | Date | Lead Investor | Post-Money |
|---|
| Pre-seed + Seed (combined disclosure) | $5.1M | Sep 2026 | MassVentures | — |
Vertical Intelligence — AI / ML
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Talent Signal
Hiring data for Subconscious has not been collected yet — the monthly talent sweep hasn't reached this company. Check back soon.
Investors
MassVentures · Foothill Ventures · Underscore VC · E14 Fund · Oakseed Ventures · Agent Fund
Products
- Subconscious inference platform (cloud and on-prem)
- TIM models (e.g. TIM-Qwen3.6-27B)
AIInferenceAI AgentsLLM InfrastructureMIT Spinout
Private-company numbers are not real-time. Reflects publicly disclosed valuations from press releases, news reports, and tender offers as of recent date. Refreshed quarterly.