Google: Gemini 3.1 Flash-Lite

Gemini 3.1 Flash-Lite is the leftover cheap Flash-Lite sibling on the live Gemini models page, not the 2026 Flash default. Rechecked 2026-08-18: ai.google.dev/gemini-api/docs/models still lists Gemini 3.1 Flash-Lite beside leftover Gemini 3.5 Flash-Lite, while the Flash lead is Gemini 3.7 Flash. The leftover dedicated card still prints 1,048,576 input / 65,536 output, text plus image / video / audio / PDF in, and a Preview $0.25 / $1.50 per 1M token row. Do not treat that Preview row as the live 2026 cheap default.

Compare Gemini 3.7 Flash if you wanted the live Flash path, leftover Gemini 3.5 Flash-Lite if you wanted the later cheap Flash-Lite twin, and leftover Gemini 3.1 Pro if you wanted the 3.1 Pro sibling.

Key Features

• Leftover cheap Flash-Lite sibling: Live docs still print 3.1 Flash-Lite beside 3.5 Flash-Lite.
• Not the 2026 Flash lead: New Flash work starts at Gemini 3.7 Flash.
• Printed leftover card: 1M context, 65k output, multimodal in, text out on the dedicated card we opened.
• Website is the models index: Point at the live Gemini models page, then the dedicated leftover card.

Use Cases

• People with a Gemini 3.1 Flash-Lite bookmark who need the catalog filled.
• People comparing leftover 3.1 Flash-Lite vs leftover 3.5 Flash-Lite vs live 3.7 Flash.
• People who were about to call 3.1 Flash-Lite the current cheap Gemini default.

Limitation: The dedicated leftover card still prints a Preview $0.25 / $1.50 row. Recheck the live models and pricing pages before you treat that as a 2026 default.

Pricing

First-party pages on 2026-08-18.

If a leftover blog still calls 3.1 Flash-Lite the current cheap Gemini default, treat the live models page as the correction.

Getting Started

1. Open the Gemini models page and note 3.1 Flash-Lite as a leftover cheap row.
2. Recheck Gemini 3.7 Flash if you wanted the live Flash path.
3. Recheck leftover Gemini 3.5 Flash-Lite if you wanted the later cheap twin.
4. Do not paste "current cheap Gemini default" onto 3.1 Flash-Lite.

Frequently Asked Questions

Is Gemini 3.1 Flash-Lite still the cheap default?

No. Live docs lead new Flash work at Gemini 3.7 Flash.

Same as Gemini 3.5 Flash-Lite?

No. Gemini 3.5 Flash-Lite is the later leftover cheap twin.

Same as Gemini 3.1 Pro?

No. Gemini 3.1 Pro is the leftover 3.1 Pro sibling.

Alternatives

• Gemini 3.7 Flash: Live Gemini Flash path.
• Gemini 3.5 Flash-Lite: Later leftover cheap Flash-Lite twin.
• GPT-5.6 Luna: Live cheap OpenAI sibling if you wandered here for a current low-cost model.

Tips

1. Call 3.1 Flash-Lite a leftover cheap sibling, not the current Flash default.
2. Point new Gemini Flash work at Gemini 3.7 Flash.
3. Recheck the leftover dedicated card before you quote $0.25 / $1.50.

Conclusion

Gemini 3.1 Flash-Lite is a leftover cheap Flash-Lite sibling on the live Gemini models page, not the 2026 Flash default. Start at the Gemini models page, then decide whether Gemini 3.7 Flash already covers the path you need.