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Research report ยท Live data

AI Training Platforms Compared

On 18 Oct 2026, 4,354 AI training roles were open across the job boards of 36 platforms; Invisible listed the most (12.2%) and Babel Audio advertised the highest median pay ($105/hr).

Data window
21 Sep 2026 to 18 Oct 2026
28 days, UTC
Computed
19 Oct 2026, 17:26 UTC
Recomputed every day
Source
The public job boards of the AI training platforms this site tracks, read every day.
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.

Key findings

  1. 1

    Invisible (12.2%), Alignerr (9.1%) and SuperAnnotate (SME) (8.7%) listed the most open roles on 18 Oct 2026; the five largest of the 36 platforms held 43.8% of all open roles.

    Figure 1
  2. 2

    Of the 25 platforms with at least 8 roles stating a rate, Babel Audio advertised the highest median, $105/hr, and Claru the lowest, $13/hr.

    Figure 2
  3. 3

    7 of 31 platforms with at least 10 open roles stated an hourly rate on every one; Perle Labs stated one on none of its 67 roles.

    Figure 2
  4. 4

    Alignerr opened all 396 of its roles to applicants anywhere, the most of any platform; Terac opened none of its 25 roles, the fewest.

    Figure 3
  5. 5

    Roles came down fastest at Mindrift (a median of 2.3 days listed) and stayed up longest at Appen (101.8 days).

    Figure 4

Figure 1

Open roles and listing activity by platform

Which platforms list the most AI training roles, and which are growing?

PlatformOpen on 18 Oct 2026Share
Invisible12.2%
Alignerr9.1%
SuperAnnotate (SME)8.7%
Weekday7.0%
Mindrift6.8%
micro15.6%
Welo Data5.4%
Mercor5.4%
AfterQuery5.0%
Turing4.4%
Handshake AI3.9%
Anyone AI2.9%
Prolific2.8%
Rise Data Labs2.4%
Sigma AI2.1%
Braintrust1.8%
Perle Labs1.5%
TransPerfect DataForce1.5%
Claru1.4%
Volga Partners1.3%
Appen1.3%
Babel Audio1.0%
OpenTrain AI1.0%
Lifted (Upwork)0.9%
RemoExperts0.8%
Innodata0.7%
Terac0.6%
OneForma0.6%
Sovrano AI0.5%
Vetto0.5%
xAI (SpaceXAI)0.3%
Scale AI Human Frontier Collective0.2%
Pasiflora AI0.2%
Outlier (Scale AI)0.1%
Pila80.1%
Remotasks0.1%

Sample. 4,354 roles open at the end of 18 Oct 2026 on the 36 platforms whose public job boards AITraining.jobs reads daily; listings from 21 Sep 2026 to 18 Oct 2026.

New listings leave out a platform's first week in this dataset (its back catalogue). Change compares the platform's open roles at the start and the end of the window.

A platform that posts one listing per language or country counts each one: these are listings, not people hired.

Source. AITraining.jobs Research, AI Training Platforms Compared, live data.

Figure 2

Advertised hourly pay by platform

What does each platform advertise it pays, and how often does it say?

Sample. The 3,593 roles open on 18 Oct 2026 that state an hourly rate.

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.

A median needs at least 8 roles stating a rate; platforms below that are marked as a small sample and show n/a.

Source. AITraining.jobs Research, AI Training Platforms Compared, live data.

Figure 3

Who may apply, by platform

Which platforms hire worldwide, and which limit roles to some countries?

PlatformOpen worldwideOnly listed countries
Alignerr
100.0%
0.0%
Vetto
95.0%
5.0%
xAI (SpaceXAI)
93.3%
6.7%
Babel Audio
88.4%
9.3%
Turing
85.4%
13.5%
RemoExperts
83.3%
16.7%
Rise Data Labs
74.5%
24.5%
micro1
66.7%
33.3%
Invisible
35.7%
64.3%
Pasiflora AISmall sample
28.6%
42.9%
Prolific
26.6%
73.4%
Claru
20.0%
80.0%
OneForma
16.7%
83.3%
Appen
14.5%
63.6%
Anyone AI
5.5%
94.5%
Sovrano AI
5.0%
95.0%
Braintrust
1.3%
98.7%
SuperAnnotate (SME)
0.5%
99.5%
AfterQuery
0.0%
14.3%
Handshake AI
0.0%
100.0%
Innodata
0.0%
100.0%
Lifted (Upwork)
0.0%
100.0%
Mercor
0.0%
44.2%
Mindrift
0.0%
100.0%
OpenTrain AI
0.0%
40.5%
Outlier (Scale AI)Small sample
0.0%
100.0%
Perle Labs
0.0%
100.0%
Pila8Small sample
0.0%
100.0%
RemotasksSmall sample
0.0%
100.0%
Scale AI Human Frontier CollectiveSmall sample
0.0%
100.0%
Sigma AI
0.0%
100.0%
Terac
0.0%
100.0%
TransPerfect DataForce
0.0%
100.0%
Volga Partners
0.0%
100.0%
Weekday
0.0%
100.0%
Welo Data
0.0%
100.0%

Sample. 4,354 roles open on 18 Oct 2026; shares of each platform's own open roles.

The rule is read from each posting's location text and, where that names no country, from what the posting's own description states. Countries named: distinct countries in the platform's include and exclude lists.

Source. AITraining.jobs Research, AI Training Platforms Compared, live data.

Figure 4

How long roles stay listed, by platform

Which platforms fill or pull their roles fastest?

PlatformMedian days listedOpen roles listed in the last 30 days
Appen
101.8
52.7%
OneForma
89.2
20.8%
Welo Data
67.1
9.8%
xAI (SpaceXAI)
64.3
0.0%
Terac
51.1
68.0%
Lifted (Upwork)
45.4
47.5%
micro1
41.0
72.0%
OpenTrain AI
40.4
4.8%
Mercor
39.7
30.5%
Turing
29.7
49.5%
TransPerfect DataForce
28.3
13.6%
Braintrust
18.5
29.5%
Alignerr
8.0
91.2%
Mindrift
2.3
100.0%
AfterQuerySmall sample
n/a
7.8%
Anyone AISmall sample
n/a
13.3%
Babel AudioSmall sample
n/a
0.0%
ClaruSmall sample
n/a
0.0%
Handshake AISmall sample
n/a
12.4%
InnodataSmall sample
n/a
25.8%
InvisibleSmall sample
n/a
0.2%
Outlier (Scale AI)Small sample
n/a
0.0%
Pasiflora AISmall sample
n/a
0.0%
Perle LabsSmall sample
n/a
3.0%
Pila8Small sample
n/a
0.0%
ProlificSmall sample
n/a
4.8%
RemoExpertsSmall sample
n/a
63.9%
RemotasksSmall sample
n/a
0.0%
Rise Data LabsSmall sample
n/a
0.0%
Scale AI Human Frontier CollectiveSmall sample
n/a
11.1%
Sigma AISmall sample
n/a
22.2%
Sovrano AISmall sample
n/a
55.0%
SuperAnnotate (SME)Small sample
n/a
4.8%
VettoSmall sample
n/a
0.0%
Volga PartnersSmall sample
n/a
36.2%
WeekdaySmall sample
n/a
0.3%

Sample. Roles removed from 21 Sep 2026 to 18 Oct 2026 with a known listing date, and roles open on 18 Oct 2026.

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.

A median needs at least 10 removed roles.

Source. AITraining.jobs Research, AI Training Platforms Compared, live data.

Figure 5

What each platform hires for

Which kind of AI training work does each platform list most?

PlatformMain kind of workIts share
InvisibleMultilingual & Localization
AlignerrLaw, Medicine & Finance
SuperAnnotate (SME)Law, Medicine & Finance
WeekdayLaw, Medicine & Finance
MindriftMultilingual & Localization
micro1Law, Medicine & Finance
Welo DataMultilingual & Localization
MercorLaw, Medicine & Finance
AfterQueryLaw, Medicine & Finance
TuringLaw, Medicine & Finance
Handshake AILaw, Medicine & Finance
Anyone AILaw, Medicine & Finance
ProlificMultilingual & Localization
Rise Data LabsMultilingual & Localization
Sigma AIMultilingual & Localization
BraintrustMultilingual & Localization
Perle LabsTranscription, Audio & Speech
TransPerfect DataForceMultilingual & Localization
ClaruRobotics & Physical-AI Data
Volga PartnersLaw, Medicine & Finance
AppenTranscription, Audio & Speech
Babel AudioTranscription, Audio & Speech
OpenTrain AITranscription, Audio & Speech
Lifted (Upwork)Transcription, Audio & Speech
RemoExpertsLaw, Medicine & Finance
InnodataData Annotation & Labeling
TeracLaw, Medicine & Finance
OneFormaMultilingual & Localization
Sovrano AILaw, Medicine & Finance
VettoLaw, Medicine & Finance
xAI (SpaceXAI)Multilingual & Localization
Scale AI Human Frontier CollectiveLaw, Medicine & Finance
Pasiflora AILaw, Medicine & Finance
Outlier (Scale AI)Multilingual & Localization
Pila8Transcription, Audio & Speech
RemotasksData Annotation & Labeling

Sample. 4,354 roles open on 18 Oct 2026, by the kind of work each is classified as.

Kinds of work are this site's 12 categories of AI training work, each classified from the role's title and description.

Source. AITraining.jobs Research, AI Training Platforms Compared, live data.

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:

  • 10,361 roles tracked, each with its history

    Every role on 36 job boards, read daily since 13 Jul 2026: its pay and place, and the first and last day it was open.

  • 7,464 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.

What you can buy

  • The records

    The rows behind any figure, with their history, not only the totals.

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  • A custom cut or benchmark

    Your countries, languages or fields, or your own platform against the market.

Method and definitions

The public job boards of the AI training platforms this site tracks, read every day. 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.

Coverage
The platforms whose public job boards AITraining.jobs reads in full every day. Each figure states how many were read.
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.
Removed listing
A role that left its platform's feed during the window.
Days listed
From a removed role's listing date to the last day it was seen in its feed.
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.
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, from AI evaluation and coding to multilingual and audio work. Every kind links to its own page.
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.
  • Pay is what postings advertise, not what workers are paid after bonuses, tiers or rejected tasks.

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. Live figures change daily: cite a monthly edition for numbers that will read the same later, or keep the access date.

Citation

AITraining.jobs (2026). AI Training Platforms Compared (live data, 21 Sep 2026 to 18 Oct 2026). https://aitraining.run/research/platform-scorecard (accessed 19 Oct 2026)

BibTeX

@misc{aitrainingjobs_platform_scorecard_live,
  author = {{AITraining.jobs}},
  title = {AI Training Platforms Compared (live data, 21 Sep 2026 to 18 Oct 2026)},
  year = {2026},
  howpublished = {\url{https://aitraining.run/research/platform-scorecard}},
  note = {Accessed 19 Oct 2026},
}
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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