AI Annotation Jobs

Label and tag images, video, and text to train AI models. One of the more varied platforms with multiple media types.

Mostly text-based tagging work, operated by Labelbox. Good for people who prefer reading and categorising written content.

Focuses heavily on audio tagging. A Scale AI subsidiary used by major AI companies. If you have good listening skills and attention to detail, this is a great fit.

Worker-facing arm of Scale AI — whose clients include OpenAI and Meta. Good variety of tasks. Pay varies widely by task type, so calculate your real hourly rate before committing.

One of the oldest platforms in the space. Strong in multilingual annotation, speech datasets, and NLP. Work availability is inconsistent — good for supplemental income.

6 million+ global contributors. Easy to join, browser-based tasks covering text, images, and audio. Pays per task — calculate your real hourly rate. Good starting point for beginners.

One of the world's largest language and AI data services companies. RWS runs annotation projects covering text, image, speech, and translation tasks. Well-established company with structured hiring and consistent project flow.

Used by top AI labs to improve language models. Mostly text annotation and RLHF work. Good pay for quality contributors. Selective — application-based.

Offers tagging jobs alongside other AI-related tasks. More variety than most platforms — worth applying early as project availability shifts.

Invisible Technologies rebranded their worker marketplace as Meridial. AI data tasking and tagging work. Projects vary — keep checking back as new work opens up regularly.

Content moderation and AI tagging work. Bigger company, more structured — often comes with training. Consistent work once hired.

Browser-based annotation platform covering image, video, and text. Beginner-accessible with straightforward tasks.

One of the oldest and most established annotation companies. Projects cover text evaluation, image labeling, speech data collection, and AI model testing. Available in 300+ languages across 100+ countries. Reliable work flow.

Large, reputable company offering AI data tagging work globally. More structured hiring process — sometimes involves an interview. Stable and well-known.

One of the world's largest crowdsourcing annotation platforms — millions of contributors globally. Tasks cover image labeling, text classification, search relevance, and audio transcription. Quick signup, pay-per-task model.

Formerly Figure Eight / CrowdFlower — one of the oldest annotation platforms still operating. Owned by Centific. Strong in multilingual tasks, search evaluation, and voice data collection. Available in 100+ countries.

TransPerfect's AI data division — specialises in speech data collection, voice recording, language annotation, and image labeling. Backed by one of the world's largest translation companies. Strong multilingual project flow.

Premium annotation platform focused on high-value AI work — RLHF, LLM evaluation, computer vision, and content safety labeling. Pays $25–$65/hr, among the highest rates in the industry. Fully remote and global. Requires passing an entry assessment (takes ~2 weeks to review).

Primarily a research platform, but now includes a dedicated AI Tasker tier — pass their AI Task Assessment to unlock RLHF, model evaluation, image annotation, and preference ranking studies. Enforces a minimum of $8/hr. Available in OECD countries only.

The original crowdsourcing platform — millions of small tasks (HITs) covering image labeling, text classification, data verification, and surveys. Pay varies wildly by requester. Use browser extensions to filter for best-paying tasks. Primarily US-based; international access is limited.

Worker-facing platform from Defined.ai. Tasks cover text annotation, audio recording and validation, image labeling, and NLP across 70+ languages. Available in 120+ countries — one of the most globally accessible platforms. Requires a verified PayPal account. Task volume can be inconsistent.

Described as 'Upwork for AI data labeling' — you create a profile, set your rate, and apply to projects. Covers LLM evaluation, code annotation, medical data, image, audio, and text. Pays $15–$100+/hr depending on specialisation. Available in 130 countries across 70+ languages.