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Last checked: October 2026. Prices are US list prices from Google.
This post first covered Gemini 2.0 Flash, which Google launched in December 2024. Gemini has moved through several generations since then. Here is where Google’s AI models stand today, which one to use and what each plan costs.
The current Gemini models
| Model | Released | Best for | Who can use it |
|---|---|---|---|
| Gemini 4 Argon | September 30, 2026 | Long, complex work in coding, research and security | Select security partners only, for now |
| Gemini 3.8 Flash | September 2, 2026 | Everyday work, coding and agents | AI Pro and Ultra in the Gemini app, AI Mode in Search and the API |
| Gemini 3.1 Pro | February 19, 2026 | Hard reasoning and long documents | Paid plans and the API |
| Gemini 3 Deep Think | February 12, 2026 | The toughest math and science problems | Google AI Ultra |
| Gemini 3.5 Flash-Lite | July 21, 2026 | High-volume, low-cost tasks | API |
| Gemini Omni | May 19, 2026 | Making and editing video | Paid plans; free in YouTube Shorts |
Gemini 4 Argon
Google’s newest flagship, announced September 30, 2026. Google says it is built for long, multi-step work in software engineering, finance, law and cybersecurity, and that it beat OpenAI’s and Anthropic’s top models on several benchmarks. For now it is limited to security partners in Google’s Fairwind Program. Google says paying subscribers will be first in line when access expands. Read our full Gemini 4 Argon review.
Gemini 3.8 Flash
The best widely available Gemini model today. Google calls it its best Flash model for reasoning and coding, and it runs in the Gemini app for AI Pro and Ultra subscribers, AI Mode in Search and Gemini in Google Sheets. It handles a 1 million token context, enough for a long book or a large codebase.
- API price: $0.75 per million input tokens and $3.75 per million output tokens, an introductory rate Google says runs until December 31, 2026
Gemini 3.1 Pro
Still the top Pro model open to the public. It is slower and pricier than Flash, but stronger on difficult reasoning. Google announced Gemini 3.5 Pro in May 2026 for a June release, but it never shipped, and Google has since shifted its focus to Gemini 4.
- API price: $2 per million input tokens and $12 per million output tokens
How Gemini got here
| Date | Milestone |
|---|---|
| December 2023 | Google announces Gemini 1.0 |
| February 2024 | Bard is renamed Gemini |
| December 2024 | Gemini 2.0 Flash launches, built for AI agents |
| 2025 | Gemini 2.5 Pro and Flash become Google’s main models |
| Late 2025 | The Gemini 3 generation arrives |
| May 2026 | Gemini 3.5 Flash and Gemini Omni launch at Google I/O |
| July–September 2026 | Gemini 3.6, 3.7 and 3.8 Flash ship within seven weeks |
| September 30, 2026 | Gemini 4 Argon launches to select partners |
If you built anything on Gemini 2.0 Flash, it has been replaced by newer Flash models. Gemini 3.8 Flash is the natural upgrade.
Gemini plans and prices
| Plan | Price | What you get |
|---|---|---|
| Free | $0 | Gemini app with Flash models and daily limits |
| Google AI Plus | $4.99/mo | About 2x the free usage, video generation and NotebookLM |
| Google AI Pro | $19.99/mo | About 4x the free usage, Gemini 3.1 Pro, Jules coding agent and 5 TB storage |
| Google AI Ultra | $99.99/mo | 5x Pro usage, Deep Think and the Gemini Spark agent |
| Google AI Ultra (higher limit) | $199.99/mo | 20x Pro usage and the most video credits |
Developers pay separately through the Gemini API, by the token.
Gemini as an AI agent
Google now pitches Gemini as much for doing work as for answering questions:
- Gemini Spark: an agent in the Gemini app that carries out multi-step tasks for you, available on Ultra in the US.
- Jules: a coding agent that works through tasks in your GitHub repositories.
- Antigravity: Google’s agent-first platform for building software, where Gemini 4 is also being tested.
Which Gemini should you use?
- Most people: Google AI Pro, which gives you Gemini 3.8 Flash and Gemini 3.1 Pro. The free app uses a slightly older Flash model.
- Hard reasoning or long documents: Gemini 3.1 Pro, on AI Pro or higher.
- Developers on a budget: Gemini 3.8 Flash in the API, while the introductory price lasts.
- Video: Gemini Omni, included in paid plans and free in YouTube Shorts.
FAQs
What is the latest Gemini model?
Gemini 4 Argon, released September 30, 2026, though only select security partners can use it so far. The newest widely available model is Gemini 3.8 Flash.
Is Gemini 4 available to the public?
Not yet. Google says it will widen access after more testing, starting with paying subscribers. It has not given a date.
Is Gemini free?
Yes. The Gemini app is free with daily limits. Paid plans start at $4.99 a month for Google AI Plus.
What happened to Gemini 3.5 Pro?
Google announced it at I/O in May 2026 but never released it. The company focused on Flash updates and then on Gemini 4.
Is Gemini 2.0 still worth using?
No. Newer Flash models are faster, smarter and in some cases cheaper. Use Gemini 3.8 Flash instead.
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