CustomGPT vs Synthesia
A detailed comparison to help you choose the right AI tool for your needs.
Our Pick
Synthesia
Synthesia edges out CustomGPT with superior overall performance and features that make it the better choice for most users.
Try SynthesiaFeature Comparison
Feature
CustomGPT
Synthesia
Ratings
Overall Rating
4.4
4.6
Coding
-
-
Writing
4.0
-
Reasoning
4.0
-
Speed
4.5
4.5
Value
4.3
4.4
Pricing
Monthly Price
$49
$22
Free Tier
Input (per 1M tokens)
-
-
Output (per 1M tokens)
-
-
Features
Context Window
100K
-
Vision/Images
Audio
Video
Code Generation
AI Agents
CustomGPT
Pros
- No-code chatbot builder
- Train on your own data
- Great for customer service
- Easy to deploy on websites
- MIT case study validation
Cons
- Not for coding tasks
- Limited customization vs building from scratch
- Pricing can add up with usage
Synthesia
Pros
- Realistic AI avatars
- 140+ languages and voices
- No video production skills needed
- Fast turnaround
- Enterprise-ready with SOC 2 compliance
Cons
- Avatar-based only (no text-to-video)
- Limited creative flexibility
- Higher cost for heavy usage
- Avatars may feel uncanny to some viewers
Choose CustomGPT if you need:
Business chatbots, customer service, knowledge bases
Choose Synthesia if you need:
Training videos, corporate communications, localization
Ready to get started?
Both tools offer free tiers or trials. Try them out and see which one works best for your workflow.