Gemini 3.1 Flash Lite vs Gemini 3.1 Flash Lite Preview

Gemini 3.1 Flash Lite at $0.287 in and $1.73 out and Gemini 3.1 Flash Lite Preview at $0.287 in and $1.73 out — per million tokens, from the same wallet.

Gemini 3.1 Flash Lite

Google

0.28¢

for a client proposal

$0.287 in · $1.73 out / 1M

1.05M context · released 3 months ago

Full page →

Gemini 3.1 Flash Lite Preview

Google

0.28¢

for a client proposal

$0.287 in · $1.73 out / 1M

1.05M context · released 5 months ago

Full page →

Asking all both at once — identical prompt, identical context — costs about 0.56¢ for a typical client proposal.

At a glance

All 2 cost the same on input.
Identical context windows: 1.05M tokens each.

Cost per task

Estimated totals at the rates above. Solid bar is input, lighter bar is output.

Quick code fix

2K in · 500 out

Gemini 3.1 Flash Lite

0.14¢

Gemini 3.1 Flash Lite Preview

0.14¢

Draft a client proposal from notes

5K in · 800 out

Gemini 3.1 Flash Lite

0.28¢

Gemini 3.1 Flash Lite Preview

0.28¢

Context-heavy session (Alyph workspace)

155K in · 4K out

Gemini 3.1 Flash Lite

$0.05

Gemini 3.1 Flash Lite Preview

$0.05

Analyze a 50-page legal contract

35K in · 1K out

Gemini 3.1 Flash Lite

1.2¢

Gemini 3.1 Flash Lite Preview

1.2¢

Large architecture refactor

250K in · 3K out

Gemini 3.1 Flash Lite

$0.08

Gemini 3.1 Flash Lite Preview

$0.08

Solid part of each bar is input tokens, the lighter part is output. Models that don’t fit a task are marked instead of priced.

Cost vs Token Amount

Drag the slider to adjust the split between input and output workload.

80% Input20% Output

Gemini 3.1 Flash Lite

Gemini 3.1 Flash Lite Preview

Adjust the ratio slider to change how output tokens influence the final price for equivalent workloads.

Pricing

Gemini 3.1 Flash Lite

Gemini 3.1 Flash Lite Preview

Input / 1M tokens

$0.287

Output / 1M tokens

$1.73

Cached input / 1M

$0.029

Web search

1.6¢ / search

Specs

Gemini 3.1 Flash Lite

Gemini 3.1 Flash Lite Preview

Provider

Google

Released

3 months ago

5 months ago

Context window

1.05M

Max output

66K

Input

Text, Images, Video, Files, and Audio

Output

Text

Reasoning

Shows its thinking

Knowledge cutoff

—

Try it with real numbers

2K tokens in · 500 tokens out.

Gemini 3.1 Flash Lite

Google

0.14¢

for this task

40% input · 60% output

Full pricing →

Gemini 3.1 Flash Lite Preview

Google

0.14¢

for this task

40% input · 60% output

Full pricing →

All 2, same prompt and context: 0.29¢. That is the entire cost of the comparison.

Your $5 welcome credit covers about 1,739 of these.

Which should you pick?

On price they are identical: about 0.28¢ for a typical task each.

Or don’t pick. Send the identical prompt to all both, read the answers side by side, and keep the winner. How to run a fair bake-off →

Gemini 3.1 Flash Lite pricing →Gemini 3.1 Flash Lite Preview pricing →Add Lyria 3 Clip Preview Add Grok 4.20

Questions, answered

Which is cheaper, Gemini 3.1 Flash Lite or Gemini 3.1 Flash Lite Preview?

On a typical client proposal (5K tokens in, 800 out) they cost the same — about 0.28¢ each. Compare them on context and capabilities instead.

Which has the largest context window?

They are identical — 1.05M tokens each, about 1,500 pages.

Can I run Gemini 3.1 Flash Lite and Gemini 3.1 Flash Lite Preview side by side on Alyph?

Yes — that is what Alyph is built for: the identical prompt with identical context to all 2, answers rendered side by side, billed from one wallet. This exact combination costs about 0.56¢ for a typical task.

Ask both at once

Identical prompt, identical context, answers side by side — about 0.56¢ for a typical client proposal. Free to start, with $5 of credit.