Flash — fastest and cheapest, lighter reasoningCommercial API

Gemini 3.1 Flash Lite Pricing

Google · google-gemini-3-1-flash-lite

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Input / 1M tokens

$0.250

Output / 1M tokens

$1.50

Context window

1,048,576 tokens

≈ 1,398 pages of text

Max output

65,536 tokens

What it costs in practice

Typical request (1,200 in + 400 out tokens)$0.0009

1,000 requests / month$0.9/mo 10,000 requests / month$9.00/mo 100,000 requests / month$90.00/mo

Estimate your own workloadOpens the calculator with Gemini 3.1 Flash Lite preloaded — adjust volume and token counts there.

Price history

Only one price point recorded so far.

The staircase chart appears once a price change is detected.

What it excels at

Handles high-volume inference and long-context multimodal inputs at low cost. Supports 1M-token context with competitive throughput for classification, extraction, and summarization workloads.

The business tradeoff

Reduced reasoning depth and instruction-following accuracy relative to larger Gemini variants. Output token pricing remains higher than input, which can increase costs on generative tasks.

Cheaper from Google

Gemini 3.5 Flash Lite (batch)Google$0.0007/ typical request Gemma 4 26B A4BGoogle$0.0002/ typical request

Same tier from other providers

GPT-5.4 NanoOpenAI$0.0007/ typical request Claude Haiku 4.5Anthropic$0.0032/ typical request Llama 3.3 70BMeta$0.0003/ typical request

Head-to-head

Gemini 3.1 Flash Lite vs GPT-5.4 Nano →Gemini 3.1 Flash Lite vs Claude Haiku 4.5 →Gemini 3.1 Flash Lite vs Llama 3.3 70B →

Vendor list rates, as of Jun 15, 2026 · source: openrouter · per-request examples assume 1,200 input + 400 output tokens.