APEX A
AI benchmark · Multi-Domain
- Built by
- Mercor
- Domains
- Multi-Domain
- On X
- @mercor ↗
- Tier
- A why
- Snapshot
What is APEX?
APEX (AI Productivity Index) is Mercor's family of benchmarks measuring economically valuable professional capabilities, such as investment banking, consulting and corporate law tasks.
“our new benchmark designed to test how well AI agents complete real, long-horizon tasks in investment banking, consulting, and corporate law.”
mercor.com/blog/introducing-apex-agents/ ↗“validating that they reflect the work of top lawyers at Fortune 500 enterprises and law firms.”
mercor.com/blog/introducing-apex-agents/ ↗“A team of Mercor experts—Vice Presidents, Managing Directors, and Managers with five-to-ten years’ experience at top-tier firms—worked in Google Workspace”
mercor.com/blog/introducing-apex-agents/ ↗
Who built APEX
Mercor built it
“the AI Productivity Index (APEX), Mercor’s family of benchmarks that measure economically valuable capabilities”
mercor.com/blog/introducing-apex-agents/ ↗
Lineage
Benchmarks this one is built on and built from: versions, subsets, extensions and the indexes that combine them.
Derived benchmarks
APEX-1 extension
APEX-Accounting subset
APEX-Agents extension
APEX-Agents 1.1 extension
APEX-Agents-AA extension
APEX-v1-extended extension
Tier A
Widely used: a lab reports it, or 50 or more models are scored on it.
How much stands behind a tier: usage, who backs it, a confirmed line from its own site or paper, and a clear read on X. High with three of the four, medium with two, low otherwise.
- 51 models scored
- listed with Mercor
- in curated RL directories (7 pts)
On X · unclear, low buzz, from 14 posts about APEX in the last month
Almost all posts are about unrelated things named Apex; the only relevant mention is a low-reach post saying Gemini 4 Carbon tops the APEX-Agents leaderboard.
How we got to tier A
- Adoption: 51 models scored; listed with Mercor. Tier A.
- On X: unclear, low buzz. “Almost all posts are about unrelated things named Apex; the only relevant mention is a low-reach post saying Gemini 4 Carbon tops the APEX-Agents leaderboard.” No move.
- In curated RL directories: 7 points, a floor of B.
- Confirmed: a line from its own site or paper places it.
A clear view on X moves a tier one step up or down; most entries don't move. How tiers work.
Where APEX sits
Its domain on the map, live. Hover a logo for its name; click to open it. Open it on the full map
Next: browse all benchmarks. Entry from the RL Research daily scrape of public sources, 2026-11-05 snapshot.