image-generation api-pricing latency gemini cost-optimization

Google releases Gemini 3.1 Flash Lite Image

Gemini 3.1 Flash Lite Image generates images in 4 seconds at $0.034 per 1K images—half the cost of standard Nano, trades text rendering and consistency for speed.

Summary

Cuts image generation latency from 20s to 4s and halves API costs, enabling real-time prototyping and interactive workflows. Quality tradeoffs (text rendering, character consistency) are explicit, so you can make cost-speed-quality decisions per use case.

Why it matters

Implementation verdict

Replaces standard Nano Banana for rapid prototyping and cost-sensitive batch jobs. Requires API access through Google's ecosystem; production use needs testing on text-heavy or consistency-critical tasks. Worth trying now if you're already on Gemini APIs and have latency/cost constraints.

Sources

1.you can go from text to an image in about 4 seconds in the default low-thinking mode
2.Generating the same images in the standard Nano Banana takes about 20 seconds
3.Google says it averages $0.034 per 1K image
4.That's half the rate for Nano Banana 2
5.Nano Banana 2 Lite tends to have more trouble with text, particularly if it's very small, and infographics are more likely to include incorrect data

Dev Signal

Get briefs like this in your inbox — free, every weekday.

100+ sources compressed into one 4-minute read. Ranked, cited, implementation-ready.

Read the full issue →All briefs