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Research report ยท September 2026 edition

Expert Fields in Demand for AI Training

On 30 Sep 2026, 1,113 open AI training roles named an expert field; Software & computer science, Finance, accounting & economics and Medicine & nursing had the most openings, and Psychology & mental health advertised the highest median pay ($150/hr).

Read the month's story: The AI Training Job Market in September 2026

Data window
1 Sep 2026 to 30 Sep 2026
30 days, UTC
Frozen
10 Oct 2026, 08:03 UTC
These figures will not change
Source
The public job boards of the AI training platforms this site tracks, read every day. Fields are read from role titles; apply clicks are made on AITraining.jobs.
Method
Version 1. Definitions
CC BY 4.0, how to cite

Every figure on this page as CSV and JSON, sent to your work email.

open roles naming an expert field
1,113
expert fields hiring
17
open roles in Software & computer science, the largest field
208
median in Psychology & mental health, the best-paid field
$150/hr

Key findings

  1. 1

    Software & computer science (208), Finance, accounting & economics (133), Medicine & nursing (107), Law (96) and Writing, editing & journalism (95) had the most open roles on 30 Sep 2026, of 17 fields named in role titles.

    Figure 1
  2. 2

    Among fields with at least 10 open roles at the start, Psychology & mental health grew fastest (+130.8%, 13 to 30) and Biology & life sciences shrank the most (-51.4%).

    Figure 1
  3. 3

    Psychology & mental health roles advertised the highest median pay, $150/hr, and Voice acting, music & sound the lowest, $36/hr, among fields with at least 8 priced roles.

    Figure 2
  4. 4

    Per open role, Education & teaching roles drew the most applicant interest (2.24x the average role on the site) and Medicine & nursing roles the least (0.53x).

    Figure 3
  5. 5

    40.8% of all open AI training roles name an expert field in their title, and 78.7% of the roles classified as law, medicine and finance work do.

    Figure 1

Figure 1

Open roles by expert field

Which professions and disciplines are AI training platforms hiring?

FieldOpen on 30 Sep 2026New listings
Software & computer science
208
107
Finance, accounting & economics
133
104
Medicine & nursing
107
73
Law
96
77
Writing, editing & journalism
95
86
Engineering (non-software)
90
70
Business, sales & consulting
81
64
Design & visual arts
74
65
Voice acting, music & sound
74
32
Psychology & mental health
51
42
Mathematics & statistics
44
22
Physics & astronomy
44
38
Humanities & social sciences
38
15
Biology & life sciences
32
20
Chemistry
20
15
Education & teaching
19
8
Trust, safety & child protectionSmall sample
16
7

Sample. 1,113 of the 2,729 roles open at the end of 30 Sep 2026 name a field in their title; 17 fields are named. New listings from 1 Sep 2026 to 30 Sep 2026.

A role counts for a field when its title names the profession or discipline (for example 'Hospitalist', 'Litigation Attorney', 'Mechanical Engineering Expert'). Generic titles ('Expert', 'Specialist', 'AI Tutor') name no field and are not counted. A role naming two fields counts for both.

Change compares open roles at the start and the end of the window on the platforms tracked throughout; it is marked as a small sample under 10 roles at the start.

Source. AITraining.jobs Research, Expert Fields in Demand for AI Training, September 2026 edition.

Figure 2

Advertised hourly pay by expert field

Which fields pay the most?

FieldMedian per hourMiddle half
Psychology & mental health
$150
$150 to $150
Law
$125
$100 to $270
Physics & astronomy
$95
$95 to $120
Finance, accounting & economics
$79
$60 to $99
Business, sales & consulting
$75
$50 to $90
Engineering (non-software)
$75
$60 to $95
Medicine & nursing
$70
$60 to $107
Biology & life sciences
$65
$65 to $90
Chemistry
$65
$65 to $73
Mathematics & statistics
$65
$65 to $88
Software & computer science
$65
$38 to $80
Education & teaching
$61
$53 to $65
Humanities & social sciences
$60
$38 to $74
Design & visual arts
$55
$32 to $75
Writing, editing & journalism
$45
$28 to $66
Voice acting, music & sound
$36
$36 to $45

Sample. Roles open on 30 Sep 2026 that state an hourly rate; fields with at least 8 such roles.

Pay is the hourly figure the posting advertises (the middle of a stated range). The middle half runs from the 25th to the 75th percentile.

Source. AITraining.jobs Research, Expert Fields in Demand for AI Training, September 2026 edition.

Figure 3

Applicant demand per open role, by expert field

Which fields draw the most applicants per opening, and which are short of them?

FieldClicks per role a weekIndex
Education & teaching
0.47
2.24x
Writing, editing & journalism
0.47
2.21x
Chemistry
0.31
1.47x
Software & computer science
0.28
1.33x
Finance, accounting & economics
0.24
1.13x
Mathematics & statistics
0.23
1.11x
Psychology & mental healthSmall sample
0.19
0.90x
Design & visual arts
0.18
0.87x
Humanities & social sciencesSmall sample
0.14
0.64x
Law
0.13
0.60x
Business, sales & consulting
0.12
0.56x
Medicine & nursing
0.11
0.53x
Physics & astronomySmall sample
0.09
0.44x
Voice acting, music & soundSmall sample
0.08
0.38x
Biology & life sciencesSmall sample
0.06
0.29x
Engineering (non-software)Small sample
0.05
0.24x
Trust, safety & child protectionSmall sample
0.05
0.23x

Sample. Apply clicks on AITraining.jobs on roles naming each field, from 1 Sep 2026 to 30 Sep 2026, against the days those roles were open.

Clicks per role a week = apply clicks / (open role-days / 7). Index 1.00 is the average across every open role on the site.

Rows with fewer than 30 clicks or 3 roles open on an average day are marked as a small sample.

AITraining.jobs shows visitors the roles open in their country first, which affects roles limited to some countries.

Source. AITraining.jobs Research, Expert Fields in Demand for AI Training, September 2026 edition.

Figure 4

Who hires for each field

Is each field's hiring spread across platforms or held by one?

FieldLargest platformIts sharePlatforms listing
Software & computer scienceOpenTrain AI
49.5%
12
Finance, accounting & economicsOpenTrain AI
27.8%
8
Medicine & nursingOpenTrain AI
29.9%
10
Lawmicro1
36.5%
9
Writing, editing & journalismOpenTrain AI
45.3%
8
Engineering (non-software)OpenTrain AI
46.7%
6
Business, sales & consultingOpenTrain AI
29.6%
8
Design & visual artsOpenTrain AI
40.5%
8
Voice acting, music & soundInvisible
39.2%
7
Psychology & mental healthOpenTrain AI
41.2%
6
Mathematics & statisticsInvisible
40.9%
7
Physics & astronomyOpenTrain AI
50.0%
6
Humanities & social sciencesOpenTrain AI
23.7%
8
Biology & life sciencesOpenTrain AI
46.9%
5
ChemistryOpenTrain AI
35.0%
4
Education & teachingAfterQuery
42.1%
6
Trust, safety & child protectionTransPerfect DataForce
81.3%
4

Sample. Roles open on 30 Sep 2026, by the platform that lists them.

A high share means one platform holds most of the openings: an applicant has few alternatives, and that platform sets the going rate.

Source. AITraining.jobs Research, Expert Fields in Demand for AI Training, September 2026 edition.

Figure 5

Where each field's roles are open

Can professionals apply from anywhere, or only from some countries?

FieldOpen worldwideOnly listed countries
Voice acting, music & sound
82.4%
17.6%
Physics & astronomy
63.6%
34.1%
Mathematics & statistics
50.0%
45.5%
Law
49.0%
41.7%
Writing, editing & journalism
46.3%
47.4%
Business, sales & consulting
44.4%
39.5%
Psychology & mental health
41.2%
45.1%
Engineering (non-software)
41.1%
45.6%
Software & computer science
40.9%
54.3%
Design & visual arts
40.5%
52.7%
Chemistry
40.0%
50.0%
Finance, accounting & economics
39.8%
47.4%
Medicine & nursing
39.3%
42.1%
Biology & life sciences
34.4%
56.3%
Education & teaching
31.6%
26.3%
Humanities & social sciences
31.6%
57.9%
Trust, safety & child protection
6.3%
87.5%

Sample. Roles open on 30 Sep 2026; shares of each field's own open roles.

The rule is read from each posting's location text. The rest of each row is roles open worldwide except some countries, or with no rule stated.

Source. AITraining.jobs Research, Expert Fields in Demand for AI Training, September 2026 edition.

For labs, data vendors and researchers

Buy the data behind this report

The figures above are a summary. Behind them are records we collect ourselves, every day:

  • 9,572 roles tracked, each with its history

    Every role on 29 job boards, read daily since 13 Jul 2026: its pay and place, and the first and last day it was open.

  • 6,200 apply clicks in 28 days

    Which roles people actually apply to, by field, pay and kind of work. It happens on this site, so nobody else can count it.

  • 39 lab and vendor hiring boards

    The job boards of 25 AI labs and 14 human-data vendors, read every day: who is hiring for human data, and who is hiring to buy it.

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Method and definitions

The public job boards of the AI training platforms this site tracks, read every day. Fields are read from role titles; apply clicks are made on AITraining.jobs. 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.

Field of a role
A role counts for a field when its title names the profession or discipline, for example 'Hospitalist', 'Litigation Attorney' or 'Mechanical Engineering Expert'. Generic titles ('Expert', 'Specialist', 'AI Tutor') name no field. A role naming two fields counts for both.
Open role
A role listed by a given day and still in its platform's feed that day.
New listing
A role that first appeared during the window on a platform already tracked before that week. A platform's first week in this dataset is its back catalogue and is not counted as new.
Advertised pay
The hourly figure a posting states (the middle of a stated range). Medians need at least 8 roles stating a rate; the middle half runs from the 25th to the 75th percentile.
Clicks per open role a week
Apply clicks on AITraining.jobs divided by the days the roles were open, times 7.
Demand index
A group's clicks per open role a week divided by the same rate across every open role on the site. Above 1, its roles draw more applicants than the average role.
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.
Window
Live: the last 28 complete days, in UTC. Edition: one calendar month, in UTC.

What this data cannot tell you

  • Platforms that recruit without a public job board are not counted. Several large ones invite workers to projects directly.
  • A listing is not a hire. Some platforms keep evergreen roles open for months, and some post one listing per language or country.
  • Generic titles hide the field of many roles, so each field's count is a floor.
  • Apply clicks measure interest among the people who use AITraining.jobs, and what is shown first gets clicked more.

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.

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). Expert Fields in Demand for AI Training, September 2026 edition. https://www.aitraining.team/research/expert-fields-in-demand/2026-09

BibTeX

@misc{aitrainingjobs_expert_fields_in_demand_2026_09,
  author = {{AITraining.jobs}},
  title = {Expert Fields in Demand for AI Training, September 2026 edition},
  year = {2026},
  howpublished = {\url{https://www.aitraining.team/research/expert-fields-in-demand/2026-09}},
}
Data: every figure as CSV (one line per value) and JSON, sent to your work email.Pay and open-roles data

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