Chemistry Specialist (AI Training)
You will use your chemistry knowledge to help improve language models. The work focuses on writing prompts, reviewing AI-generated answers, researching chemistry topics, and giving clear subject-matter feedback.
- Field
- Chemistry
- Where
- United States
- Commitment
- part time
- Hours
- up to 20/week
- Asks for
- Master's
- Posted
- 6 days ago
Pay data for your profession: Science AI trainer jobs · Chemistry AI trainer jobs
How this pay compares
At $50/hr, this role pays more than 13% of the 51 open chemistry roles with a listed pay range, below the median of $83.
Open chemistry roles that ask for a Master's have a median of $79/hr (22 roles).
Among platforms with 10 or more priced chemistry roles, Mercor has the highest median ($85/hr across 11 roles) and OpenTrain AI the lowest ($75/hr across 25).
OpenTrain AI roles that closed since late October stayed listed a median of 31 days (122 roles). OpenTrain AI posted this one 6 days ago.
Computed from 2,746 open roles we track across Mercor, micro1, Handshake AI, Alignerr, Appen and OpenTrain AI, refreshed daily. Midpoints of listed ranges; “up to” ceilings are left out of medians.
What you would earn at this rate
Rate
$50/hr
Per week, before tax
$1,000
Per month, if the work is steady
$4,333
- Tax
- Contract pay arrives with no tax withheld. A US contractor at this rate and these hours would set aside about $1,096 a month for self-employment tax plus federal income tax at the 12% bracket (25%, before state tax). Outside the US, your own country's rules apply.
Assumes paid hours only; unpaid assessments, onboarding and gaps between projects lower the real figure. Full take-home calculator · Track what you actually earn
Open chemistry roles on each platform
The same kind of work, priced on every platform we track, with the best-paid open role on each.
| Platform | Open | Median | Best-paid open role |
|---|---|---|---|
| Mercor | 11 | $85/hr | Chemistry Domain Expert$90-140/hr |
| Alignerr | 13 | $83/hr | Chemist, PhD$90-120/hr |
| OpenTrain AIthis role | 25 | $75/hr | Computational Materials Science Expert$175/hr |
| Handshake AI | 6 | up to $58/hr | Chemistry ExpertUp to $150/hr |
“Up to” rows list only ceilings, so their median is a maximum, not comparable with the range midpoints above them.
All 57 open chemistry roles →The full listing
As posted on OpenTrain AI. See the original
The work
You will use your chemistry knowledge to help improve language models. The work focuses on writing prompts, reviewing AI-generated answers, researching chemistry topics, and giving clear subject-matter feedback.
- Write prompts based on chemistry concepts and specialized topics.
- Rate AI responses for chemistry accuracy, clarity, and depth.
- Research chemistry topics with help from AI tools and use that research in your feedback.
- Use independent judgment while working on available projects asynchronously.
What it pays and takes
- Pay: Up to $50 per hour.
- Schedule: Part-time, with a requirement of 20 or more hours per week.
- Location: Open to candidates in the United States.
- Language: Fluent in English.
- Education: Master's-level study or graduate-level experience focused on chemistry.
- Skills: Strong chemistry knowledge, clear explanations, and the ability to judge whether an AI response shows meaningful chemistry expertise.
- Work style: Able to work independently in a primarily asynchronous setting.
- Eligibility: Candidates should have applicable work or training authorization, including pathways such as F-1/OPT, J-1, or H-1B.
- Helpful background: Experience writing domain-specific prompts or evaluating language model responses, plus interest in AI-assisted chemistry research.
How it works
Apply on OpenTrain with your resume, then complete the application on the hiring site.
About AI training work
AI training is the human work behind systems that write and answer questions. Specialists prepare examples, review model responses, and provide feedback so AI can handle subjects such as chemistry more accurately. OpenTrain helps people find this type of work, build a profile, and apply to projects in one place.
From applying to your first payment on OpenTrain AI
- 1
Create a profile
Create a free OpenTrain profile with your domains, languages and hourly rate.
- 2
Apply
Apply to the listing. Some listings hire through OpenTrain; others send you to the hiring platform.
- 3
Funded milestones
The client funds each milestone before work starts.
- 4
First payment
OpenTrain pays out to your connected payout method when the client approves the milestone. It doesn't publish a fixed payout schedule.
Sources: OpenTrain: AI training careers, OpenTrain docs: invoicing and payouts
Full OpenTrain AI profile: watch-outs and the public record →Pay history
OpenTrain AI has listed this role at $50/hr since Nov 5, 2026 with no change.
Across OpenTrain AI's chemistry roles, the median listed pay was $70/hr on Nov 1, 2026 (13 roles) and is $75/hr as of Nov 11, 2026 (25 roles).
What workers report about OpenTrain AI
Anonymous reports from people who applied or worked there: whether they got work, what they were paid and how fast.
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