# Gemini 3.1 Flash-Lite

As of 18 September 2026, Gemini 3.1 Flash-Lite costs $1.50 per million output tokens on Google. Observed on Google's own published price list on 18 September 2026.

Source: Google
Canonical page: https://bertrande.com/en/ai/google/gemini-3-1-flash-lite/
Machine formats: https://bertrande.com/en/ai/google/gemini-3-1-flash-lite/data.json | https://bertrande.com/en/ai/google/gemini-3-1-flash-lite/data.csv
License: CC-BY-4.0, reuse with attribution and a link.

## Parameters

| Parameter | Value | Unit | Observed | Source level | Proof (SHA-256) |
|---|---|---|---|---|---|
| Output price | $1.50 | USD per 1M tokens | 2026-09-18 | L3 | `7ddd8ebc405852aa` |
| Cache storage price | $1.00 | USD per 1M tokens per hour | 2026-09-18 | L3 | `7ddd8ebc405852aa` |
| Input price (audio) | $0.500 | USD per 1M tokens | 2026-09-18 | L3 | `7ddd8ebc405852aa` |
| Input price (batch tier; audio) | $0.250 | USD per 1M tokens | 2026-09-18 | L3 | `7ddd8ebc405852aa` |
| Input price (batch tier; text / image / video) | $0.125 | USD per 1M tokens | 2026-09-18 | L3 | `7ddd8ebc405852aa` |
| Input price (flex tier; audio) | $0.250 | USD per 1M tokens | 2026-09-18 | L3 | `7ddd8ebc405852aa` |
| Input price (flex tier; text / image / video) | $0.125 | USD per 1M tokens | 2026-09-18 | L3 | `7ddd8ebc405852aa` |
| Input price (priority tier; audio) | $0.900 | USD per 1M tokens | 2026-09-18 | L3 | `7ddd8ebc405852aa` |
| Input price (priority tier; text / image / video) | $0.450 | USD per 1M tokens | 2026-09-18 | L3 | `7ddd8ebc405852aa` |
| Input price (text / image / video) | $0.250 | USD per 1M tokens | 2026-09-18 | L3 | `7ddd8ebc405852aa` |
| Output price (batch tier) | $0.750 | USD per 1M tokens | 2026-09-18 | L3 | `7ddd8ebc405852aa` |
| Output price (flex tier) | $0.750 | USD per 1M tokens | 2026-09-18 | L3 | `7ddd8ebc405852aa` |
| Output price (priority tier) | $2.70 | USD per 1M tokens | 2026-09-18 | L3 | `7ddd8ebc405852aa` |
| Cache read price (audio) | $0.050 | USD per 1M tokens | 2026-09-18 | L3 | `7ddd8ebc405852aa` |
| Cache read price (batch tier; audio) | $0.025 | USD per 1M tokens | 2026-09-18 | L3 | `7ddd8ebc405852aa` |
| Cache read price (batch tier; text / image / video) | $0.0125 | USD per 1M tokens | 2026-09-18 | L3 | `7ddd8ebc405852aa` |
| Cache read price (flex tier; audio) | $0.025 | USD per 1M tokens | 2026-09-18 | L3 | `7ddd8ebc405852aa` |
| Cache read price (flex tier; text / image / video) | $0.0125 | USD per 1M tokens | 2026-09-18 | L3 | `7ddd8ebc405852aa` |
| Cache read price (priority tier; audio) | $0.090 | USD per 1M tokens | 2026-09-18 | L3 | `7ddd8ebc405852aa` |
| Cache read price (priority tier; text / image / video) | $0.045 | USD per 1M tokens | 2026-09-18 | L3 | `7ddd8ebc405852aa` |
| Cache read price (text / image / video) | $0.025 | USD per 1M tokens | 2026-09-18 | L3 | `7ddd8ebc405852aa` |
| Cache storage price (batch tier) | $0.500 | USD per 1M tokens per hour | 2026-09-18 | L3 | `7ddd8ebc405852aa` |
| Cache storage price (flex tier) | $0.500 | USD per 1M tokens per hour | 2026-09-18 | L3 | `7ddd8ebc405852aa` |
| Cache storage price (priority tier) | $1.80 | USD per 1M tokens per hour | 2026-09-18 | L3 | `7ddd8ebc405852aa` |

## How this is verified

Every value above was read from the source URL shown on the canonical page, on the date given. We store a SHA-256 fingerprint of the source content at that moment, which is what lets us show later what the source said that day.

No value here was produced, estimated or completed by a language model. Where we have no verified figure, the row is absent rather than filled in.

Method: https://bertrande.com/en/methodology/
Report an error: https://bertrande.com/en/corrections/