GPT-5.2 vs Synthesia
A detailed comparison to help you choose the right AI tool for your needs.
Our Pick
GPT-5.2 Instant
GPT-5.2 Instant edges out Synthesia with superior overall performance and features that make it the better choice for most users.
Try GPT-5.2Feature Comparison
Feature
GPT-5.2
Synthesia
Ratings
Overall Rating
4.8
4.6
Coding
4.6
-
Writing
4.8
-
Reasoning
4.7
-
Speed
4.9
4.5
Value
4.7
4.4
Pricing
Monthly Price
$20
$22
Free Tier
Input (per 1M tokens)
$2.5
-
Output (per 1M tokens)
$10
-
Features
Context Window
128K
-
Vision/Images
Audio
Video
Code Generation
AI Agents
GPT-5.2 Instant
Pros
- Newest OpenAI model (Dec 2025)
- Fast responses optimized for speed
- 30% fewer hallucinations than GPT-5.1
- Knowledge cutoff August 2025
- Better at spreadsheets and presentations
- Matches human experts on professional tasks
Cons
- Not as strong as Thinking variant for complex tasks
- Requires paid subscription for full access
- Coding not as strong as Claude Opus 4.5
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 GPT-5.2 if you need:
Daily tasks, writing, translation, quick coding help
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.