Google's multimodal AI assistant powered by Gemini 4 Carbon (Gemini Carbon 4), Gemini 4 Argon, and Gemini 3.8 Flash with a 1M-token context window and Workspace integration.
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Captions records 798,690 monthly visits with -20.1% month-over-month growth and Freemium pricing. OpenAI Platform records 234,678,639 monthly visits with -9.6% growth and Paid pricing.
AI that edits your video like a professional editor would
| Dimension / Metric | ![]() | |
|---|---|---|
| Official Domain | captions.ai | openai.com |
| Pricing Model | Freemium | Paid |
| Monthly Visits | 798.69K (798,690) | 234.68M (234,678,639) |
| MoM Traffic Delta | -200.28K (-20.1%) |
| -24.78M (-9.6%) |
| Primary Market & Share | 🇺🇸 United States (16.9%) | 🇺🇸 United States (25.4%) |
|---|
| Direct Visits / mo | 382.31K | 105.1M |
|---|
| User Rating | 4 | 4.3 |
|---|
| Supported Platforms | Website | Website |
|---|
AI that edits your video like a professional editor would
Pick a visual style and Captions cuts scenes, adds zooms, overlays B-roll and music, and returns a fully edited video in one pass.
Generate animated word-level captions with stylized fonts, or translate and subtitle content in more than 100 languages.
Create a digital twin or choose from a library of ready-made avatars, then reuse the same presenter across topics with prompt-based changes to outfits and backdrops.
Direct changes with simple text prompts, so beginners can make advanced edits without knowing a timeline editor.

Enterprise developer platform and API for deploying GPT-6 Astra, Sol, Luna, and realtime multimodal agents.
Spanning GPT-6 Astra ($10/$50 per MTok), GPT-6.1 Sol ($2/$10), GPT-6.1 Terra ($1/$5), and GPT-6 Luna ($0.10/$0.50), all with a 1,050,000-token context window and 128K max output.
Tune thinking token budgets per API request across six granularity levels (`none`, `low`, `medium`, `high`, `xhigh`, `max`) to balance latency, accuracy, and cost.
Combine model inference with hosted web search, file search, function calling, and autonomous GUI computer-use actions in a single stateful API call.
Build ultra-low-latency multimodal voice agents billed per second ($0.05/minute) without rounding up to whole minutes.
Google's multimodal AI assistant powered by Gemini 4 Carbon (Gemini Carbon 4), Gemini 4 Argon, and Gemini 3.8 Flash with a 1M-token context window and Workspace integration.
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