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Gemini 3 Flash vs GPT 5.3 Codex vs Gemini 3

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3 of 4 tools selected

Specs	Top Rated Gemini 3 Flash (1) Free	GPT 5.3 Codex No reviews Paid	Gemini 3 (7) Free
Overview
Rating	4.0 / 5	Unrated	3.4 / 5
Use Case	Content Creation	Coding	Content Creation
Tagline	Enjoy professional-level intelligence with extreme speed and efficiency (and at a reduced cost). This model uses 30% fewer tokens and is very good at agentic coding	An autonomous coding agent that works for hours on complex projects. You can interact with it in real time while it codes, tests, and deploys your applications. It outperforms all	Google's most intelligent multimodal model: advanced reasoning, deep contextual understanding, autonomous agents, visual coding, and Deep Think mode. It performs particularly well
Pricing
Model	Free	Paid	Free
Details	Free tier; $0.25/1M input; $1.50/1M output (paid).	Starting at $20/month	Free tier; Pro $19.99/month; Ultra $249.99/month.
Tags	Free Tier	Subscription	SubscriptionFree Tier
Features
AI Model	Proprietary	Proprietary	Proprietary
Pros	+Developer-friendly with API access. +Native mobile app available for on-the-go use. +Capable of autonomous agentic workflows.	+Developer-friendly with API access. +Capable of autonomous agentic workflows.	+Developer-friendly with API access. +Native mobile app available for on-the-go use. +Capable of autonomous agentic workflows.
Cons	–May use submitted data for model training (check privacy policy).	–No permanent free tier available. –May use submitted data for model training (check privacy policy).	–May use submitted data for model training (check privacy policy).
API
Mobile App
Open Source
Integrations	NotionGoogle DriveZapier	GithubSlackNotion	NotionGoogle DriveZapier
Security & Privacy
Trains on Data	Yes	Yes	Yes
SSO
Certifications	None	None	None
Team
Best For	Solo	Small Team	Solo
	Details	Details	Details

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