Key findings
- 1
Mercor listed 325 open roles on 31 Aug 2026, 20.4% of the 1,591 open across the 14 platforms AITraining.jobs reads, the 2nd most.
- 2
Counted at the end of each week, Mercor went from 262 open roles on 9 Aug 2026 to 325 on 31 Aug 2026 (+24.0%); the highest count was 353 on 30 Aug 2026.
- 3
35.1% of its open roles are in Law, Medicine & Finance, where Mercor holds 26.5% of all open roles, more than any other platform; it lists 10 of the 12 kinds of work with open roles.
- 4
97.2% of its open roles state an hourly rate, with a median of $85/hr (middle half $60 to $100), against $65/hr across other platforms' priced roles.
- 5
Compared within the same kinds of work (5 with enough rates on both sides), the advertised median at Mercor runs 31.1% above other platforms' and is higher in all 5; the widest gap is in Law, Medicine & Finance ($100/hr against $70/hr).
- 6
82.8% of its open roles are open to applicants in any country (43.2% on other platforms); 17.2% are limited to listed countries, most often the United States (named by 78.6%).
- 7
From 1 Aug 2026 to 31 Aug 2026, Mercor posted 352 new listings and removed 233 (listed a median of 32.2 days before removal, against 20.3 days on other platforms); its open roles went from 206 to 325 (+57.8%).
- 8
Of the 93 roles Mercor lists with a full description, 17.2% mention a PhD or master's degree, 16.1% a professional credential and 5.4% an assessment or test (other platforms with descriptions: 19.6%, 29.1% and 39.3%).
Figure 1
Mercor against the other platforms
How does Mercor compare with the rest of the market on size, pay, reach and turnover?
| Measure | Mercor | Other platforms | Its rank (1 = highest) |
|---|---|---|---|
| Open roles on 31 Aug 2026 | 325 | 1,266 | 2nd of 14 |
| Share of all open roles | 20.4% | 79.6% | 2nd of 14 |
| New listings in the window | 352 | 586 | 1st of 14 |
| Kinds of work listed | 10 | 12 | 1st of 14 |
| Open roles stating an hourly rate | 97.2% | 87.0% | 6th of 12 |
| Median advertised pay | $85/hr | $65/hr | 1st of 9 |
| Open roles accepting any country | 82.8% | 43.2% | 4th of 12 |
| Median days listed, removed roles | 32.2 days | 20.3 days | 4th of 10 |
Sample. 325 roles Mercor listed open at the end of 31 Aug 2026, beside the 1,266 open on the other 13 platforms AITraining.jobs reads; listings from 1 Aug 2026 to 31 Aug 2026.
Other platforms: every other platform read over the same window, pooled (counts are summed, medians are taken over all their roles together).
Rank among the 14 platforms with open roles; shares need at least 10 open roles, a pay median 8 roles stating a rate and days listed 10 removed roles with a known listing date, so a platform below a threshold is not ranked on it. Days listed rank longest first.
Listings only: what the platform's public job board shows.
Source. AITraining.jobs Research, Mercor Hiring Data, August 2026 edition.
Figure 2
Open roles at Mercor, week by week
Is Mercor listing more AI training roles or fewer?
| Week | Open at the end of the week | New listings |
|---|---|---|
| 3 to 9 Aug | 262 | 127 |
| 10 to 16 Aug | 332 | 96 |
| 17 to 23 Aug | 346 | 44 |
| 24 to 30 Aug | 353 | 69 |
| 31 to 31 AugPartial week | 325 | 0 |
Sample. Listings by Mercor, by ISO week (Monday to Sunday, UTC), 1 Aug 2026 to 31 Aug 2026; 5 weeks tracked.
Open roles are counted at the end of each week (Sunday, UTC), or at the end of the window for a week it cuts. New listings leave out roles that came with the platform's back catalogue.
A week the window cuts is labelled with the days it covers and marked as partial.
The series starts no earlier than the week of 3 Aug 2026, when this dataset's feeds were complete.
Source. AITraining.jobs Research, Mercor Hiring Data, August 2026 edition.
Figure 3
What Mercor hires for
Which kinds of AI training work does Mercor list, and how much of each market does it hold?
| Kind of work | Open roles | Share of its roles | Its share of the kind's open roles |
|---|---|---|---|
| Law, Medicine & Finance | 114 | 35.1% | 26.5% |
| AI Evaluation & Rating (RLHF) | 106 | 32.6% | 48.4% |
| Math & STEM | 34 | 10.5% | 21.5% |
| Coding & Software Evaluation | 24 | 7.4% | 19.0% |
| Multilingual & Localization | 20 | 6.2% | 4.6% |
| Red-Teaming & AI Safety | 15 | 4.6% | 93.8% |
| Agentic Tasks & RL EnvironmentsSmall sample | 5 | 1.5% | 29.4% |
| Data Annotation & LabelingSmall sample | 3 | 0.9% | 10.0% |
| Research Studies & SurveysSmall sample | 2 | 0.6% | 33.3% |
| Writing & ContentSmall sample | 2 | 0.6% | 11.8% |
Sample. 325 roles Mercor listed open at the end of 31 Aug 2026; market shares are of the 1,591 roles open on all 14 platforms that day.
Kinds of work are this site's twelve categories of AI training work, each role classified from its title and description.
Its rank in the kind is among the platforms with open roles in it. A median needs at least 8 roles stating an hourly rate.
Source. AITraining.jobs Research, Mercor Hiring Data, August 2026 edition.
Figure 4
What Mercor advertises it pays
How often does Mercor state its pay, and how does it compare with other platforms for the same work?
| Roles | Stating an hourly rate | Its median per hour | Other platforms' median | Its median against theirs |
|---|---|---|---|---|
| All its open roles | 97.2% | $85 | $65 | +30.0% |
| Compared within the same kinds of work (5) | n/a | n/a | n/a | +31.1% |
| Law, Medicine & Finance | 98.2% | $100 | $70 | +42.9% |
| AI Evaluation & Rating (RLHF) | 99.1% | $80 | $65 | +23.1% |
| Math & STEM | 97.1% | $85 | $65 | +30.8% |
| Coding & Software Evaluation | 79.2% | $80 | $65 | +23.1% |
| Multilingual & Localization | 100.0% | $75 | $65 | +15.4% |
| Red-Teaming & AI Safety | 100.0% | $55 | n/a | n/a |
| Agentic Tasks & RL EnvironmentsSmall sample | 100.0% | n/a | $41 | n/a |
| Data Annotation & LabelingSmall sample | 100.0% | n/a | $23 | n/a |
| Research Studies & SurveysSmall sample | 100.0% | n/a | n/a | n/a |
| Writing & ContentSmall sample | 100.0% | n/a | $48 | n/a |
Sample. 316 of the 325 roles Mercor listed open on 31 Aug 2026 state an hourly rate; other platforms: 1,102 of 1,266.
Pay is the hourly figure a posting advertises (the middle of a stated range). The middle half runs from the 25th to the 75th percentile.
A median needs at least 8 roles stating a rate, on each side for a comparison. The row compared within the same kinds of work averages the kinds where both sides have enough, weighted by the platform's priced roles in each, so a platform listing better-paid work is not read as paying more for the same work.
Source. AITraining.jobs Research, Mercor Hiring Data, August 2026 edition.
Figure 5
Who may apply to roles at Mercor
Are the roles Mercor lists open to applicants anywhere, or limited to some countries?
| Location rule | Its open roles | Share of its roles | Share on other platforms |
|---|---|---|---|
| Open worldwide | 269 | 82.8% | 43.2% |
| Worldwide except listed countries | 0 | 0.0% | 12.3% |
| Only listed countries | 56 | 17.2% | 44.5% |
| No rule stated | 0 | 0.0% | 0.0% |
Sample. 325 roles Mercor listed open on 31 Aug 2026, against the 1,266 open on other platforms.
The rule is read from each posting's location text and, where the posting is silent, from what the platform states about where it hires. A rule says where applications are accepted; tax, payment and work-permit rules can still apply.
Source. AITraining.jobs Research, Mercor Hiring Data, August 2026 edition.
Figure 6
Countries Mercor names in its limited roles
When Mercor limits a role to some countries, which countries does it name?
| Country | Limited roles naming it | Share of its limited roles |
|---|---|---|
| United States | 44 | 78.6% |
| United Kingdom | 7 | 12.5% |
| Canada | 4 | 7.1% |
| Australia | 3 | 5.4% |
| France | 3 | 5.4% |
| Japan | 3 | 5.4% |
| Spain | 3 | 5.4% |
| Germany | 2 | 3.6% |
Sample. 56 of the 325 roles Mercor listed open on 31 Aug 2026 accept applicants only from listed countries; 48 of them name a single country. The 8 countries named most often, of 9.
A role naming several countries counts for each. Open only there: roles whose list names this country alone.
Source. AITraining.jobs Research, Mercor Hiring Data, August 2026 edition.
Figure 7
Listings posted and removed by Mercor
How many roles did Mercor post and take down?
| Measure | Roles |
|---|---|
| Open at the start of 1 Aug 2026 | 206 |
| New listings | 352 |
| Removed listings | 233 |
| Open at the end of 31 Aug 2026 | 325 |
Sample. Listings by Mercor from 1 Aug 2026 to 31 Aug 2026.
New listings: roles first seen in the window, outside the platform's first week in this dataset. Removed: roles that left the feed during the window. A role can be both.
The other platforms' count at the start leaves out platforms first tracked during the window.
Source. AITraining.jobs Research, Mercor Hiring Data, August 2026 edition.
Figure 8
How long roles at Mercor stayed up
How long had the roles Mercor removed been listed?
| Days listed | Removed roles | Share |
|---|---|---|
| Under 7 days | 41 | 17.6% |
| 7 to 13 days | 26 | 11.2% |
| 14 to 29 days | 36 | 15.5% |
| 30 to 59 days | 61 | 26.2% |
| 60 days or more | 69 | 29.6% |
Sample. 233 roles Mercor removed from 1 Aug 2026 to 31 Aug 2026 with a known listing date; median 32.2 days (other platforms: 20.3 days over 599 roles).
Days listed: from the listing date the job board states (or the first day the role appeared in the feed) to the last day it was seen. Roles that arrived with the back catalogue and state no date are left out.
A median needs at least 10 removed roles. A removed role may have been filled, paused or closed: platforms do not say which.
Source. AITraining.jobs Research, Mercor Hiring Data, August 2026 edition.
Figure 9
What Mercor calls the work
Which words does Mercor use in its job titles: trainer, tutor, expert, rater, annotator?
| Title word | Its open roles | Share of its roles | Share on other platforms |
|---|---|---|---|
| Expert or SME | 140 | 43.1% | 22.7% |
| Evaluator or reviewer | 54 | 16.6% | 3.1% |
| Lead or manager | 14 | 4.3% | 1.3% |
| Specialist | 13 | 4.0% | 36.6% |
| Engineer or developer | 11 | 3.4% | 5.8% |
| Voice actor or speaker | 11 | 3.4% | 6.9% |
| Analyst or researcherSmall sample | 5 | 1.5% | 1.7% |
| Quality assuranceSmall sample | 4 | 1.2% | 1.3% |
| Red teamer or testerSmall sample | 2 | 0.6% | 0.0% |
| Writer or editorSmall sample | 2 | 0.6% | 2.0% |
| Annotator or labelerSmall sample | 1 | 0.3% | 2.0% |
| Contributor or participantSmall sample | 1 | 0.3% | 2.8% |
| Linguist or translatorSmall sample | 1 | 0.3% | 2.7% |
| RaterSmall sample | 1 | 0.3% | 0.2% |
| TutorSmall sample | 1 | 0.3% | 2.0% |
| None of these words | 77 | 23.7% | 14.9% |
Sample. 325 roles Mercor listed open on 31 Aug 2026, by the words in their titles (the same vocabulary as the job titles report).
A title can use several words ('Expert AI Trainer') and counts for each, so shares add to more than 100%. Whole words, case-insensitive.
Source. AITraining.jobs Research, Mercor Hiring Data, August 2026 edition.
Figure 10
Languages Mercor hires for
Which languages does Mercor name in its job titles?
| Language | Its open roles | Share of its roles | Its share of all roles naming the language |
|---|---|---|---|
| English | 13 | 4.0% | 22.8% |
| Chinese (Mandarin)Small sample | 6 | 1.8% | 19.4% |
| NorwegianSmall sample | 5 | 1.5% | 62.5% |
| SpanishSmall sample | 5 | 1.5% | 19.2% |
| ArabicSmall sample | 4 | 1.2% | 11.4% |
| FrenchSmall sample | 4 | 1.2% | 10.8% |
| DanishSmall sample | 3 | 0.9% | 37.5% |
| GermanSmall sample | 3 | 0.9% | 10.3% |
| HungarianSmall sample | 3 | 0.9% | 42.9% |
| RussianSmall sample | 3 | 0.9% | 21.4% |
| ThaiSmall sample | 3 | 0.9% | 25.0% |
| VietnameseSmall sample | 3 | 0.9% | 18.8% |
Sample. 72 of the 325 roles Mercor listed open on 31 Aug 2026 name a language in the title (32 languages, the 12 named most often shown).
Read from titles with the vocabulary of the languages report (whole words); a title naming two counts for both, and a role that needs a language without naming it is not counted.
Source. AITraining.jobs Research, Mercor Hiring Data, August 2026 edition.
Figure 11
Expert fields Mercor hires for
Which professions and disciplines does Mercor name in its job titles?
| Field | Its open roles | Share of its roles | Its share of all roles naming the field |
|---|---|---|---|
| Law | 41 | 12.6% | 45.1% |
| Finance, accounting & economics | 38 | 11.7% | 41.3% |
| Voice acting, music & sound | 38 | 11.7% | 52.8% |
| Business, sales & consulting | 30 | 9.2% | 41.7% |
| Medicine & nursing | 20 | 6.2% | 27.8% |
| Software & computer science | 13 | 4.0% | 12.0% |
| Design & visual arts | 10 | 3.1% | 26.3% |
| Biology & life sciencesSmall sample | 9 | 2.8% | 25.7% |
| Education & teachingSmall sample | 7 | 2.2% | 28.0% |
| Engineering (non-software)Small sample | 5 | 1.5% | 10.6% |
| Writing, editing & journalismSmall sample | 4 | 1.2% | 11.4% |
| ChemistrySmall sample | 3 | 0.9% | 17.6% |
Sample. 212 of the 325 roles Mercor listed open on 31 Aug 2026 name a field in the title (17 fields, the 12 named most often shown).
Read from titles with the vocabulary of the expert fields report (whole words); a title naming two counts for both, and a role that needs a field without naming it is not counted.
Source. AITraining.jobs Research, Mercor Hiring Data, August 2026 edition.
Figure 12
What roles at Mercor ask for
Do the roles Mercor lists ask for degrees, credentials, experience, set hours or tests?
| The description | Its roles | Share of its roles read | Other platforms with descriptions |
|---|---|---|---|
| Mentions a PhD or doctorate | 14 | 15.1% | 12.6% |
| Mentions a PhD or master's degree | 16 | 17.2% | 19.6% |
| Mentions a degree | 21 | 22.6% | 29.4% |
| Mentions a professional credential | 15 | 16.1% | 29.1% |
| States years of experience | 25 | 26.9% | 31.3% |
| States weekly hours | 35 | 37.6% | 34.4% |
| Mentions an assessment, test or trial task | 5 | 5.4% | 39.3% |
| Mentions an interview of any kind | 13 | 14.0% | 7.4% |
| Mentions an AI-led or recorded interview | 3 | 3.2% | 4.9% |
| Mentions a background or identity check | 0 | 0.0% | 2.1% |
| Mentions contractor or freelance terms | 17 | 18.3% | 62.6% |
Sample. The full descriptions of 93 of the 325 roles Mercor listed open on 31 Aug 2026, against 326 roles of the other platforms whose boards publish them (AfterQuery, Braintrust and micro1). Median years asked: 4. Median weekly hours stated: 40.
Read with the documented patterns of the requirements report (whole words, case-insensitive). A mention can be a requirement or a preference ('a PhD is a plus'): both count.
Medians of years and hours need at least 5 roles stating them; for hours the lower figure of a range counts.
Source. AITraining.jobs Research, Mercor Hiring Data, August 2026 edition.
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9,572 roles tracked, each with its history
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Method and definitions
The public job boards of the AI training platforms this site tracks, read every day. Mercor's figures come from its own public listings only; full descriptions and application forms are read where its job board publishes them. Every figure is computed by one database query over the window shown, the same query for the live report and for every edition. Each figure states its sample beneath it.
- Other platforms
- Every platform this site reads other than Mercor, over the same window and pooled: counts are summed and medians are taken over all their rates together. Mercor is compared with the rest of the market, not with a market that includes it.
- Rank
- Its place among the platforms with open roles on the last day of the window, highest first (longest first for days listed). Shares need at least 10 open roles, a pay median 3 distinct advertised rates and days listed 10 removed roles, so a platform below a threshold is not ranked on that measure.
- Open role
- A role listed by a given day and still in its platform's feed that day. Week by week, open roles are counted at the end of each week (Sunday, UTC).
- Back catalogue
- The roles already listed in the week a platform was first tracked. That week is marked in the weekly series and its roles are not counted as new listings; weeks before it are left out.
- New listing
- A role that first appeared during the window on a platform already tracked before that week.
- Removed listing
- A role that left its platform's feed during the window. When most removals or new listings fall on one day, the figure says so: one large change to a board moves the window's flow.
- Days listed
- From a removed role's listing date to the last day it was seen in its feed. A median needs at least 10 removed roles with a known listing date.
- Advertised pay
- Measured exactly as the job board measures any list of roles, so a median here is the median Mercor's pay page states for the same roles: one sample per distinct advertised rate (the middle of a stated range; a role posted again at the same rate counts once), and an advertised maximum ("up to $X/hr") is a ceiling, not a rate, so it is counted and left out. Typical pay is the 25th percentile of what roles pay (the middle of each advertised range) to the 90th-percentile advertised ceiling; it and the median are rounded to $5 ($1 under $20) and need at least 3 distinct rates.
- Compared within the same kinds of work
- For each kind of work where both the platform and the other platforms state at least 8 distinct hourly rates, its median over theirs, minus one; averaged across those kinds, weighted by the platform's distinct rates, so a platform listing better-paid work is not read as paying more for the same work. It needs two such kinds.
- Location rule
- Read from each posting's location text and, where that names no country, from what the posting's own description states: open worldwide, worldwide except listed countries, only listed countries, or no rule stated.
- Kind of work
- Each role is classified from its title and description into one of the twelve kinds of AI training work this site tracks. Every kind links to its own page.
- Title word, language, field
- Read from titles as whole words with the vocabularies of the job titles, languages and expert fields reports; a title can count for several.
- Mention
- A description mentions a degree, credential, step or term when it contains one of the patterns published in the requirements report. A mention may be a requirement or a preference.
- Application form
- The fields an applicant fills in on the platform's own application page, read from its applicant-tracking system. Required: the form will not submit without the field.
- Window
- Live: the last 28 complete days, in UTC, with the weekly series over the last twelve complete ISO weeks from the week of 3 Aug 2026 at the earliest. Edition: one calendar month, in UTC, its weeks cut at the month's edges.
What this data cannot tell you
- Platforms that recruit without a public job board are not counted, and a platform may staff projects it never lists: its listings are what it advertises, not everything it hires for.
- A listing is not a hire. Some platforms keep evergreen roles open for months, and some post one listing per language or country.
- Listings only: how many people apply to a platform is never published here.
- Pay is what postings advertise, not what workers are paid after bonuses, tiers or rejected tasks.
- Full descriptions and application forms are published by some job boards only, so those figures appear only for the platforms whose boards publish them, and describe the roles open on the day they were read.
- A removed listing may have been filled, paused or closed: platforms do not say which.
How the job feeds are read and roles are classified: site methodology. How fresh, complete and consistent the data is, checked every day: data quality and coverage.
Editions
The live report covers the last 28 complete days and changes every day. Each complete month is also published as an edition, frozen two days after the month ends, so a figure you cite from an edition never moves.
- Live dataLast 28 complete days, recomputed daily
- September 2026 editionFrozen 10 Oct 2026
- August 2026 editionFrozen 10 Oct 2026
Cite and reuse
Free to quote, chart and republish under CC BY 4.0 with a link to this page. This edition is frozen, so its figures will read the same later.
Citation
AITraining.jobs (2026). Mercor Hiring Data, August 2026 edition. https://www.aitraining.team/research/mercor-hiring-data/2026-08
BibTeX
@misc{aitrainingjobs_mercor_hiring_data_2026_08,
author = {{AITraining.jobs}},
title = {Mercor Hiring Data, August 2026 edition},
year = {2026},
howpublished = {\url{https://www.aitraining.team/research/mercor-hiring-data/2026-08}},
}More research
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