Synthesia vs Veo 3
A feature-by-feature comparison of Synthesia and Veo 3 across 7 capability categories.
Modalities — Veo 3 Wins
| Feature | Synthesia | Veo 3 |
|---|---|---|
Text Input | No. Auto populated | Yes, requires free plan. Text prompts drive Veo 3.1 in Flow, Gemini, and the API; output can include native dialogue and sound. |
Image Upload / Vision | No. Auto populated | Yes, requires free plan. Image-to-video is a documented Veo 3.1 input; the Gemini API model card lists text and image in. |
Image Generation | Partial. Auto populated | No. Veo outputs video with audio, not still images. Still generation in Flow is a different model. |
Voice Mode | No. Auto populated | No. There is no conversational voice loop; you type or attach a frame, then wait for a clip. |
Video Understanding | Partial. Auto populated | Partial. Veo can extend clips and take frame direction in Flow/API. Analysing arbitrary uploaded video is Gemini video understanding, not Veo. |
Video Generation | Yes, requires plus plan. Avatar videos generated from a script in the studio. | Yes, requires plus plan. Google Veo 3 generates video with native audio in Gemini, Flow, and Vertex. |
File Upload (PDF, DOCX) | Yes. Auto populated | No. No PDF/DOCX ingestion. Inputs are prompts and images (and clip extension), not documents. |
Code Execution | No. Auto populated | No. Not a code-execution product. |
Audio Input | No. Auto populated | No. The Veo 3.1 Gemini API card lists text and image inputs only. Native audio is generated on the way out. |
Canvas / Artifact Editor | No. Auto populated | Partial. Google Flow’s Scenebuilder is the filmmaking canvas around Veo, not a Veo chat artifact panel. |
Screen Sharing / Computer Use | No. Auto populated | No. No computer-use / screen-control product. |
Memory & Context — Tie
| Feature | Synthesia | Veo 3 |
|---|---|---|
Persistent Memory | Partial. Auto populated | No. No cross-session user memory. Flow may keep projects; that is the studio, not a Veo memory layer. |
Large Context Window | No. Auto populated | No. Prompt cap is 1,024 tokens on the Gemini API Veo 3.1 card — not a large LLM context window. |
Custom Instructions | No. Auto populated | No. No global instruction profile for Veo. Each job is a prompt plus optional frames. |
Conversation History | No. Auto populated | No. Veo is a generator, not a chat log. Conversational video editing is documented for Gemini Omni, not Veo. |
Integrations — Veo 3 Wins
| Feature | Synthesia | Veo 3 |
|---|---|---|
Web Search / Browsing | No. Auto populated | No. Does not browse the live web. |
Plugins / Extensions | No. Auto populated | No. No third-party plugin marketplace for Veo itself. |
API Access | Paid Only. Auto populated | Yes, requires pro plan. Gemini API Veo 3.1 is paid-tier only. Legacy veo-3.0 IDs shut down 30 June 2026. |
Zapier Integration | No. Auto populated | Unknown. No first-party Veo Zapier app was checked. |
Custom GPTs / Bots | No. Auto populated | No. No Custom GPT-style Veo agents. |
Real-time Collaboration | No. Auto populated | Unknown. Flow link sharing exists in changelogs; live multiplayer editing was not confirmed. |
Live Social Data Integration | No. No live social firehose. | |
Live Citation Mapping | No. Not a cited-search product. |
Developer — Tie
| Feature | Synthesia | Veo 3 |
|---|---|---|
Function Calling | No. Auto populated | No. No tool-calling interface. You submit a generate-video request. |
Streaming Responses | No. Auto populated | No. Clips are returned when generation finishes, not token-streamed. |
Fine-Tuning | No. Auto populated | No. No custom-weight training product for Veo. |
Embeddings API | No. Auto populated | No. Not an embeddings API. |
Structured Output (JSON) | No. Auto populated | No. Output is video, not JSON schema. |
Reasoning / Thinking Mode | No. Auto populated | No. Not a chain-of-thought LLM. Conversational video reasoning is Gemini Omni. |
Local Execution | No. Hosted by Google. Weights are not for local download. | |
Open Weights | No. Closed model. | |
Multi-Agent Orchestration | No. Not a multi-agent orchestrator. Flow “Agent” is a studio feature, not Veo’s API. |
Platforms — Veo 3 Wins
| Feature | Synthesia | Veo 3 |
|---|---|---|
Web App | No. Auto populated | Yes, requires free plan. Used in the browser via Flow, Gemini, Google Vids, and Google AI Studio. |
iOS App | No. Auto populated | Partial. There is no Veo iOS app. DeepMind lists Gemini as a surface; Gemini has iOS. A dedicated Veo mobile client was not documented. |
Android App | No. Auto populated | Partial. Same as iOS: Gemini Android may expose video gen; there is no Veo Android app. |
Desktop App | No. Auto populated | No. No native Veo desktop app. Flow and Gemini are browser/Gemini-app surfaces. |
Chrome Extension | No. Auto populated | No. No official Chrome extension. |
Privacy — Veo 3 Wins
| Feature | Synthesia | Veo 3 |
|---|---|---|
GDPR Compliant | No. Auto populated | Unknown. Needs a current Google DPA read for Flow/Gemini video, not a guess from the model page. |
Opt Out of Data Training | No. Auto populated | Partial. Paid Gemini API Veo 3.1 lists “Used to improve our products: No”. Consumer Flow/Gemini training controls were not checked here. |
Enterprise Privacy Mode | No. Auto populated | Yes, requires enterprise plan. DeepMind lists Gemini Enterprise Agent Platform as a Veo surface for governed production use. |
Workspaces — Tie
| Feature | Synthesia | Veo 3 |
|---|---|---|
Projects / Folders | No. Auto populated | Unknown. Flow has studio projects; a Veo-specific folder model was not confirmed on the DeepMind page. |