SpecialistConnects teams directly with verified human participants for preference tuning and studies, but lacks managed end-to-end labeling pipelines.

Appen records 665,840 monthly visits with +0.2% month-over-month growth and Contact for Pricing pricing. Toki records 86,216 monthly visits with +24.5% growth and Freemium pricing.
An executive assistant that finds and handles what matters
| +16.98K (+24.5%) |
| Primary Market & Share | 🇺🇸 United States (22%) | 🇧🇷 Brazil (59.8%) |
|---|
| Direct Visits / mo | 238.31K | 38.95K |
|---|
| User Rating | 4.4 | 4.4 |
|---|
| Supported Platforms | Website | Website |
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Human-validated training data and evaluation services for frontier AI models
Chain-of-thought reasoning traces, SME-level RLHF, supervised fine-tuning demonstrations and adversarial red teaming for the most capable models.
Golden trajectories, RL environment design, failure-mode taxonomies and software-engineering-driven deep evaluation for autonomous agents.
Multilingual ASR and conversational speech data, expressive TTS annotation, vision-language model training data, video action labelling and voice-agent evaluation.
LiDAR point-cloud labeling, multi-camera sensor fusion, robot demonstration trajectories, world-model rollouts and embodied interaction logs.
An executive assistant that finds and handles what matters
Sync email, calendars, Slack and other tools and Toki surfaces the tasks and goals that matter instead of waiting for you to file each one manually.
Speak, type or send a screenshot. Toki accepts all three, replies in kind, and can phone you when something genuinely needs attention.
Create events, reschedule, block deep-work time and resolve conflicts by describing what you want in plain language rather than clicking through forms.
Toki learns how you plan and what you prefer, so reminders sharpen and recommendations fit your working style over time.
SpecialistConnects teams directly with verified human participants for preference tuning and studies, but lacks managed end-to-end labeling pipelines.


Blends custom software with dedicated human expert teams to handle complex operations, but operates as a bespoke service.


Combines robust data labeling tools with automated workflows, but focuses more on software tooling than managed human workforces.

AI calendar that defends your focus time and schedules work automatically
Provides enterprise-grade AI training data and model evaluation at massive scale, but often with higher enterprise pricing.

SpecialistThe AI super app for work — tasks, projects, calendar and meetings in one place

An adaptive AI work assistant that learns how you work across inboxes, calendars, chats, and apps

Delivers advanced multimodal data curation and annotation infrastructure, but requires your own annotation workforce for labeling tasks.

Email an AI assistant and let it run your schedules, inbox and CRM

SpecialistAn AI executive assistant that works across your inbox, calendar and meetings


SpecialistAgent observability, evaluation, and continuous improvement for production AI
SpecialistThe multimodal data layer for computer vision and physical AI teams
SpecialistConnects teams directly with verified human participants for preference tuning and studies, but lacks managed end-to-end labeling pipelines.
Blends custom software with dedicated human expert teams to handle complex operations, but operates as a bespoke service.
Combines robust data labeling tools with automated workflows, but focuses more on software tooling than managed human workforces.
AI calendar that defends your focus time and schedules work automatically
Provides enterprise-grade AI training data and model evaluation at massive scale, but often with higher enterprise pricing.
SpecialistThe AI super app for work — tasks, projects, calendar and meetings in one place
An adaptive AI work assistant that learns how you work across inboxes, calendars, chats, and apps
Delivers advanced multimodal data curation and annotation infrastructure, but requires your own annotation workforce for labeling tasks.
SpecialistAn AI executive assistant that works across your inbox, calendar and meetings
SpecialistAgent observability, evaluation, and continuous improvement for production AI
SpecialistThe multimodal data layer for computer vision and physical AI teams