Synthesia vs GPT-5.2 o1
A detailed comparison to help you choose the right AI tool for your needs.
Our Pick
GPT-5.2 Thinking
GPT-5.2 Thinking edges out Synthesia with superior overall performance and features that make it the better choice for most users.
Try GPT-5.2 o1Feature Comparison
Feature
Synthesia
GPT-5.2 o1
Ratings
Overall Rating
4.6
4.9
Coding
-
4.8
Writing
-
4.5
Reasoning
-
5.0
Speed
4.5
3.8
Value
4.4
4.0
Pricing
Monthly Price
$22
$200
Free Tier
Input (per 1M tokens)
-
$15
Output (per 1M tokens)
-
$60
Features
Context Window
-
128K
Vision/Images
Audio
Video
Code Generation
AI Agents
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
GPT-5.2 Thinking
Pros
- Best reasoning model from OpenAI
- Edges out Gemini 3 and Claude Opus 4.5 on most tests
- Performs at/above human expert level on GDPval
- Excellent for coding, math, and document analysis
- State-of-the-art on SWE-Bench Pro
Cons
- Expensive ($200/mo for Pro subscription)
- Slower than Instant variant
- Requires Pro subscription for full access
- Writing can feel robotic
Choose Synthesia if you need:
Training videos, corporate communications, localization
Choose GPT-5.2 o1 if you need:
Complex reasoning, software engineering, research, math proofs
Ready to get started?
Both tools offer free tiers or trials. Try them out and see which one works best for your workflow.