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Return arrow · Training input

Active RL-environment vendors (directory count)

Active commercial vendors in rl-list.com's directory of reinforcement-learning environment suppliers, at each directory release.

Reason through this

The reading

A directory maintained by one person; the count is a floor and the 'active' tag is self-reported by vendors.

Every readingeach dot links to its record
a readingnormal rangefast range
reported

2 readings drawn from rl_list.commercial.active_vendor_count.pt; 2 observations in the evidence.

Source: rl-list.com RL-environment vendor directory. rl-list.com.

The numbers
as ofreadingvaluerecord
2026-10-05commercial23reported
2026-07-15commercial24reported

Why it matters

The return arrow's supply side: environments are how deployment feedback becomes training signal today, and the vendor count is the only public series on that market.

What cuts against it

Directory coverage and confidence tags are uneven; count says nothing about revenue, which is where the labs' procurement shows.

How it is measured

Normal = a few dozen vendors (a specialist market); fast = 150 or more (a commodity market forming in months). Between is emerging.

Applied to rl_list.commercial.active_vendor_count.pt.

Latest readings
  • 2026-10-05 commercial · 23as of 2026-10-05
  • 2026-07-15 commercial · 24as of 2026-07-15
Why this status, and its history

rl-list.com's directory (generated 15 Jul 2026) lists 24 active commercial RL-environment vendors of 38 entries, inside the normal band (a few dozen, a specialist market). A single directory maintained by one person, tier 6, so the status is capped at emerging. Initial seed.

  1. 2026-09-10unmeasured to emergingconf — → 35 · the evaluator (automatic)

    rl-list.com's directory (generated 15 Jul 2026) lists 24 active commercial RL-environment vendors of 38 entries, inside the normal band (a few dozen, a specialist market). A single directory maintained by one person, tier 6, so the status is capped at emerging. Initial seed.

    source1
Why this confidence

Rests on 2 observations from rl-list.com RL-environment vendor directory; best evidence tier 6, grade B; current.

Confidence is independent of status: 90–95 multiple strong independent sources; 70–89 good evidence, some ambiguity; 50–69 mixed or hard to operationalise; 0–49 limited or vague evidence.

Predictions that lean on this