gemini-3.1-flash-lite

Gemini 3.1 Flash-Lite — priced by Google.

Jurisdiction US
Context window 1,048,576 tokens
Provider Google
Tiers priced 17

1 of this model’s published tiers no longer come from the vendor. The provider stopped publishing those keys and we did not stop publishing a value for them, so the next source down the trust order supplies the number: it is real and it is sourced, but it is not the provider’s own rate and the provider may no longer sell at it. Each one is marked in the table. See source handovers.

Published tiers

What the most recent complete run published for this model, one row per priced tier, each with the source it was read from.

Tier	Input USD/1M	Output USD/1M	Last read	Read from	Flags
batch	0.125	0.75	just now	Gemini API pricing (docs)	confirmedcorroborated
batch:audio	0.25	—no output price published	just now	Gemini API pricing (docs)	confirmedsingle source
cache_hit	0.025	n/a, not applicable: this tier prices input tokens only and has no output side	just now	Gemini API pricing (docs)	confirmedcorroborated
cache_hit:audio	0.05	n/a, not applicable: this tier prices input tokens only and has no output side	just now	Gemini API pricing (docs)	confirmedsingle source
cache_hit:batch	0.0125	n/a, not applicable: this tier prices input tokens only and has no output side	just now	Gemini API pricing (docs)	confirmedcorroborated
cache_hit:batch_audio	0.025	n/a, not applicable: this tier prices input tokens only and has no output side	just now	Gemini API pricing (docs)	unconfirmedsingle source
cache_hit:flex	0.0125	n/a, not applicable: this tier prices input tokens only and has no output side	just now	Gemini API pricing (docs)	unconfirmedsingle source
cache_hit:flex_audio	0.025	n/a, not applicable: this tier prices input tokens only and has no output side	just now	Gemini API pricing (docs)	unconfirmedsingle source
cache_hit:priority	0.045	n/a, not applicable: this tier prices input tokens only and has no output side	just now	Gemini API pricing (docs)	unconfirmedsingle source
cache_hit:priority_audio	0.09	n/a, not applicable: this tier prices input tokens only and has no output side	just now	Gemini API pricing (docs)	unconfirmedsingle source
cache_write	0.08333	n/a, not applicable: this tier prices input tokens only and has no output side	just now	OpenRouter models API	no longer the vendor’ssingle source
flat	0.25	1.5	just now	Gemini API pricing (docs)	confirmedcorroborated
flat:audio	0.5	—no output price published	just now	Gemini API pricing (docs)	confirmedsingle source
flat:flex	0.125	0.75	just now	Gemini API pricing (docs)	confirmedsingle source
flat:flex_audio	0.25	—no output price published	just now	Gemini API pricing (docs)	unconfirmedsingle source
flat:priority	0.45	2.7	just now	Gemini API pricing (docs)	confirmedsingle source
flat:priority_audio	0.9	—no output price published	just now	Gemini API pricing (docs)	unconfirmedsingle source

This model on the price scale0.0125 to 2.7 across 21 published values

The same six decades as the front page, so a price is in the same place here as it is anywhere else on this site. The two marks in the accent colour are this model’s cheapest and dearest published values.

Price history

Every distinct value this price has taken, oldest first — what the price did, not how often we happened to look. Rows marked backfill came from a public git history of a third-party pricing file and were never verified by us; they extend the series backwards and are flagged rather than hidden.

batch

1 distinct value

One value across the whole archive: this price has not moved in anything we have observed.

Held steady148 days — the value published now has been observed to hold for 148 days, which is 100% of the longest run on this page.

Input 0.125
Output 0.75
First seen 2026-05-22 17:04Z
Last seen 2026-10-17 12:00Z
Reads 74
Last read 2026-10-17 12:00Z
Source Gemini API pricing (docs)

batch:audio

14 distinct values

Held steady2 days — the value published now has been observed to hold for 2 days, which is 1% of the longest run on this page.

inputoutput10 windows nobody looked inhorizontal axis is time

Input 0.25, unchanged
Output 0.75, unchanged
Observed 2026-08-15 23:13Zto 2026-10-15 12:00Z

First seen	Last seen	Input USD/1M	Output USD/1M	Reads	Source	Last read	Flags
2026-08-15 23:13Z	2026-08-15 23:18Z	0.25	0.75	2	Gemini API pricing (docs)no url recorded	2026-08-15 23:18Z	unconfirmed
2026-08-15 23:23Z	2026-08-15 23:23Z	0.25	—no output price published	1	Gemini API pricing (docs)no url recorded	2026-08-15 23:23Z	unconfirmed
2026-08-16 01:19Z	2026-08-16 01:19Z	0.25	0.75	1	Gemini API pricing (docs)	2026-08-16 01:19Z
2026-08-16 01:25Z	2026-09-23 12:00Z	0.25	—no output price published	47	Gemini API pricing (docs)	2026-09-23 12:00Z
2026-09-24 12:00Z	2026-09-24 12:00Z	0.25	0.75	1	Gemini API pricing (docs)	2026-09-24 12:00Z	unconfirmed
2026-09-25 12:00Z	2026-09-26 12:00Z	0.25	—no output price published	2	Gemini API pricing (docs)	2026-09-26 12:00Z
2026-09-27 12:00Z	2026-09-27 12:00Z	0.25	0.75	1	Gemini API pricing (docs)	2026-09-27 12:00Z	unconfirmed
2026-09-28 12:00Z	2026-09-28 12:00Z	0.25	—no output price published	1	Gemini API pricing (docs)	2026-09-28 12:00Z
2026-09-29 12:00Z	2026-09-29 12:00Z	0.25	0.75	1	Gemini API pricing (docs)	2026-09-29 12:00Z	unconfirmed
2026-09-30 12:00Z	2026-10-06 12:00Z	0.25	—no output price published	6	Gemini API pricing (docs)	2026-10-06 12:00Z
2026-10-07 12:00Z	2026-10-07 12:00Z	0.25	0.75	1	Gemini API pricing (docs)	2026-10-07 12:00Z	unconfirmed
2026-10-08 12:00Z	2026-10-13 12:00Z	0.25	—no output price published	5	Gemini API pricing (docs)	2026-10-13 12:00Z
2026-10-14 12:00Z	2026-10-14 12:00Z	0.25	0.75	1	Gemini API pricing (docs)	2026-10-14 12:00Z	unconfirmed
2026-10-15 12:00Z	2026-10-17 12:00Z	0.25	—no output price published	3	Gemini API pricing (docs)	2026-10-17 12:00Z

cache_hit

2 distinct values

Held steady148 days — the value published now has been observed to hold for 148 days, which is 100% of the longest run on this page.

inputoutput1 window nobody looked inhorizontal axis is time

Input low 0.025 · high 0.045 high from backfill
Observed 2026-05-20 17:03Zto 2026-05-22 17:04Z

First seen	Last seen	Input USD/1M	Output USD/1M	Reads	Source	Last read	Flags
2026-05-20 17:03Z	2026-05-20 17:03Z	0.045	n/a, not applicable: this tier prices input tokens only and has no output side	1	LiteLLM model_prices_and_context_window.json (git history)	never	backfillunconfirmed
2026-05-22 17:04Z	2026-10-17 12:00Z	0.025	n/a, not applicable: this tier prices input tokens only and has no output side	74	Gemini API pricing (docs)	2026-10-17 12:00Z

cache_hit:audio

1 distinct value

One value across the whole archive: this price has not moved in anything we have observed.

Held steady63 days — the value published now has been observed to hold for 63 days, which is 42% of the longest run on this page.

Input 0.05
Output n/a, not applicable: this tier prices input tokens only and has no output side
First seen 2026-08-15 23:13Z
Last seen 2026-10-17 12:00Z
Reads 73
Last read 2026-10-17 12:00Z
Source Gemini API pricing (docs)

cache_hit:batch

1 distinct value

One value across the whole archive: this price has not moved in anything we have observed.

Held steady63 days — the value published now has been observed to hold for 63 days, which is 42% of the longest run on this page.

Input 0.0125
Output n/a, not applicable: this tier prices input tokens only and has no output side
First seen 2026-08-15 23:13Z
Last seen 2026-10-17 12:00Z
Reads 73
Last read 2026-10-17 12:00Z
Source Gemini API pricing (docs)

cache_hit:batch_audio

1 distinct value

One value across the whole archive: this price has not moved in anything we have observed.

Held steady63 days — the value published now has been observed to hold for 63 days, which is 42% of the longest run on this page.

Input 0.025
Output n/a, not applicable: this tier prices input tokens only and has no output side
First seen 2026-08-15 23:13Z
Last seen 2026-10-17 12:00Z
Reads 73
Last read 2026-10-17 12:00Z
Source Gemini API pricing (docs)

cache_hit:flex

1 distinct value

One value across the whole archive: this price has not moved in anything we have observed.

Held steady63 days — the value published now has been observed to hold for 63 days, which is 42% of the longest run on this page.

Input 0.0125
Output n/a, not applicable: this tier prices input tokens only and has no output side
First seen 2026-08-15 23:13Z
Last seen 2026-10-17 12:00Z
Reads 73
Last read 2026-10-17 12:00Z
Source Gemini API pricing (docs)

cache_hit:flex_audio

1 distinct value

One value across the whole archive: this price has not moved in anything we have observed.

Held steady63 days — the value published now has been observed to hold for 63 days, which is 42% of the longest run on this page.

Input 0.025
Output n/a, not applicable: this tier prices input tokens only and has no output side
First seen 2026-08-15 23:13Z
Last seen 2026-10-17 12:00Z
Reads 73
Last read 2026-10-17 12:00Z
Source Gemini API pricing (docs)

cache_hit:priority

1 distinct value

One value across the whole archive: this price has not moved in anything we have observed.

Held steady63 days — the value published now has been observed to hold for 63 days, which is 42% of the longest run on this page.

Input 0.045
Output n/a, not applicable: this tier prices input tokens only and has no output side
First seen 2026-08-15 23:13Z
Last seen 2026-10-17 12:00Z
Reads 73
Last read 2026-10-17 12:00Z
Source Gemini API pricing (docs)

cache_hit:priority_audio

1 distinct value

One value across the whole archive: this price has not moved in anything we have observed.

Held steady63 days — the value published now has been observed to hold for 63 days, which is 42% of the longest run on this page.

Input 0.09
Output n/a, not applicable: this tier prices input tokens only and has no output side
First seen 2026-08-15 23:13Z
Last seen 2026-10-17 12:00Z
Reads 73
Last read 2026-10-17 12:00Z
Source Gemini API pricing (docs)

cache_write

21 distinct values

Held steady24 hours — the value published now has been observed to hold for 24 hours, which is 1% of the longest run on this page.

inputoutput19 windows nobody looked inhorizontal axis is time

Input low 0.08333 · high 1
Observed 2026-08-15 23:13Zto 2026-10-16 12:00Z

First seen	Last seen	Input USD/1M	Output USD/1M	Reads	Source	Last read	Flags
2026-08-15 23:13Z	2026-08-16 13:50Z	0.08333	n/a, not applicable: this tier prices input tokens only and has no output side	11	OpenRouter models API	2026-08-16 13:50Z
2026-08-16 13:55Z	2026-08-16 13:55Z	1	n/a, not applicable: this tier prices input tokens only and has no output side	1	Gemini API pricing (docs)	2026-08-16 13:55Z	unconfirmed
2026-08-16 13:59Z	2026-09-04 12:00Z	0.08333	n/a, not applicable: this tier prices input tokens only and has no output side	25	OpenRouter models API	2026-09-04 12:00Z
2026-09-10 12:00Z	2026-09-10 12:00Z	1	n/a, not applicable: this tier prices input tokens only and has no output side	1	Gemini API pricing (docs)	2026-09-10 12:00Z	unconfirmed
2026-09-11 12:00Z	2026-09-12 12:00Z	0.08333	n/a, not applicable: this tier prices input tokens only and has no output side	2	OpenRouter models API	2026-09-12 12:00Z
2026-09-13 12:00Z	2026-09-14 12:00Z	1	n/a, not applicable: this tier prices input tokens only and has no output side	2	Gemini API pricing (docs)	2026-09-14 12:00Z	unconfirmed
2026-09-15 12:00Z	2026-09-15 12:00Z	0.08333	n/a, not applicable: this tier prices input tokens only and has no output side	1	OpenRouter models API	2026-09-15 12:00Z
2026-09-16 12:00Z	2026-09-18 12:00Z	1	n/a, not applicable: this tier prices input tokens only and has no output side	3	Gemini API pricing (docs)	2026-09-18 12:00Z	unconfirmed
2026-09-19 12:00Z	2026-09-19 12:00Z	0.08333	n/a, not applicable: this tier prices input tokens only and has no output side	1	OpenRouter models API	2026-09-19 12:00Z
2026-09-20 12:00Z	2026-09-21 12:00Z	1	n/a, not applicable: this tier prices input tokens only and has no output side	2	Gemini API pricing (docs)	2026-09-21 12:00Z	unconfirmed
2026-09-22 12:00Z	2026-09-23 12:00Z	0.08333	n/a, not applicable: this tier prices input tokens only and has no output side	2	OpenRouter models API	2026-09-23 12:00Z
2026-09-24 12:00Z	2026-09-25 12:00Z	1	n/a, not applicable: this tier prices input tokens only and has no output side	2	Gemini API pricing (docs)	2026-09-25 12:00Z	unconfirmed
2026-09-26 12:00Z	2026-09-26 12:00Z	0.08333	n/a, not applicable: this tier prices input tokens only and has no output side	1	OpenRouter models API	2026-09-26 12:00Z
2026-09-27 12:00Z	2026-09-27 12:00Z	1	n/a, not applicable: this tier prices input tokens only and has no output side	1	Gemini API pricing (docs)	2026-09-27 12:00Z	unconfirmed
2026-09-28 12:00Z	2026-10-04 12:00Z	0.08333	n/a, not applicable: this tier prices input tokens only and has no output side	6	OpenRouter models API	2026-10-04 12:00Z
2026-10-05 12:00Z	2026-10-05 12:00Z	1	n/a, not applicable: this tier prices input tokens only and has no output side	1	Gemini API pricing (docs)	2026-10-05 12:00Z	unconfirmed
2026-10-06 12:00Z	2026-10-11 12:00Z	0.08333	n/a, not applicable: this tier prices input tokens only and has no output side	5	OpenRouter models API	2026-10-11 12:00Z
2026-10-12 12:00Z	2026-10-13 12:00Z	1	n/a, not applicable: this tier prices input tokens only and has no output side	2	Gemini API pricing (docs)	2026-10-13 12:00Z	unconfirmed
2026-10-14 12:00Z	2026-10-14 12:00Z	0.08333	n/a, not applicable: this tier prices input tokens only and has no output side	1	OpenRouter models API	2026-10-14 12:00Z
2026-10-15 12:00Z	2026-10-15 12:00Z	1	n/a, not applicable: this tier prices input tokens only and has no output side	1	Gemini API pricing (docs)	2026-10-15 12:00Z	unconfirmed
2026-10-16 12:00Z	2026-10-17 12:00Z	0.08333	n/a, not applicable: this tier prices input tokens only and has no output side	2	OpenRouter models API	2026-10-17 12:00Z

flat

2 distinct values

Held steady148 days — the value published now has been observed to hold for 148 days, which is 100% of the longest run on this page.

inputoutput1 window nobody looked inhorizontal axis is time

Input low 0.25 · high 0.45 high from backfill
Output low 1.5 · high 2.7 high from backfill
Observed 2026-05-20 17:03Zto 2026-05-22 17:04Z

First seen	Last seen	Input USD/1M	Output USD/1M	Reads	Source	Last read	Flags
2026-05-20 17:03Z	2026-05-20 17:03Z	0.45	2.7	1	LiteLLM model_prices_and_context_window.json (git history)	never	backfillunconfirmed
2026-05-22 17:04Z	2026-10-17 12:00Z	0.25	1.5	74	Gemini API pricing (docs)	2026-10-17 12:00Z

flat:audio

14 distinct values

Held steady2 days — the value published now has been observed to hold for 2 days, which is 1% of the longest run on this page.

inputoutput10 windows nobody looked inhorizontal axis is time

Input 0.5, unchanged
Output 1.5, unchanged
Observed 2026-08-15 23:13Zto 2026-10-15 12:00Z

First seen	Last seen	Input USD/1M	Output USD/1M	Reads	Source	Last read	Flags
2026-08-15 23:13Z	2026-08-15 23:18Z	0.5	1.5	2	Gemini API pricing (docs)no url recorded	2026-08-15 23:18Z
2026-08-15 23:23Z	2026-08-15 23:23Z	0.5	—no output price published	1	Gemini API pricing (docs)no url recorded	2026-08-15 23:23Z	unconfirmed
2026-08-16 01:19Z	2026-08-16 01:19Z	0.5	1.5	1	Gemini API pricing (docs)	2026-08-16 01:19Z
2026-08-16 01:25Z	2026-09-23 12:00Z	0.5	—no output price published	47	Gemini API pricing (docs)	2026-09-23 12:00Z
2026-09-24 12:00Z	2026-09-24 12:00Z	0.5	1.5	1	Gemini API pricing (docs)	2026-09-24 12:00Z	unconfirmed
2026-09-25 12:00Z	2026-09-26 12:00Z	0.5	—no output price published	2	Gemini API pricing (docs)	2026-09-26 12:00Z
2026-09-27 12:00Z	2026-09-27 12:00Z	0.5	1.5	1	Gemini API pricing (docs)	2026-09-27 12:00Z	unconfirmed
2026-09-28 12:00Z	2026-09-28 12:00Z	0.5	—no output price published	1	Gemini API pricing (docs)	2026-09-28 12:00Z
2026-09-29 12:00Z	2026-09-29 12:00Z	0.5	1.5	1	Gemini API pricing (docs)	2026-09-29 12:00Z	unconfirmed
2026-09-30 12:00Z	2026-10-06 12:00Z	0.5	—no output price published	6	Gemini API pricing (docs)	2026-10-06 12:00Z
2026-10-07 12:00Z	2026-10-07 12:00Z	0.5	1.5	1	Gemini API pricing (docs)	2026-10-07 12:00Z	unconfirmed
2026-10-08 12:00Z	2026-10-13 12:00Z	0.5	—no output price published	5	Gemini API pricing (docs)	2026-10-13 12:00Z
2026-10-14 12:00Z	2026-10-14 12:00Z	0.5	1.5	1	Gemini API pricing (docs)	2026-10-14 12:00Z	unconfirmed
2026-10-15 12:00Z	2026-10-17 12:00Z	0.5	—no output price published	3	Gemini API pricing (docs)	2026-10-17 12:00Z

flat:flex

1 distinct value

One value across the whole archive: this price has not moved in anything we have observed.

Held steady63 days — the value published now has been observed to hold for 63 days, which is 42% of the longest run on this page.

Input 0.125
Output 0.75
First seen 2026-08-15 23:13Z
Last seen 2026-10-17 12:00Z
Reads 73
Last read 2026-10-17 12:00Z
Source Gemini API pricing (docs)

flat:flex_audio

12 distinct values

Held steady2 days — the value published now has been observed to hold for 2 days, which is 1% of the longest run on this page.

inputoutput8 windows nobody looked inhorizontal axis is time

Input 0.25, unchanged
Output 0.75, unchanged
Observed 2026-08-15 23:13Zto 2026-10-15 12:00Z

First seen	Last seen	Input USD/1M	Output USD/1M	Reads	Source	Last read	Flags
2026-08-15 23:13Z	2026-08-15 23:18Z	0.25	0.75	2	Gemini API pricing (docs)no url recorded	2026-08-15 23:18Z
2026-08-15 23:23Z	2026-08-15 23:23Z	0.25	—no output price published	1	Gemini API pricing (docs)no url recorded	2026-08-15 23:23Z	unconfirmed
2026-08-16 01:19Z	2026-08-16 01:19Z	0.25	0.75	1	Gemini API pricing (docs)	2026-08-16 01:19Z
2026-08-16 01:25Z	2026-09-26 12:00Z	0.25	—no output price published	50	Gemini API pricing (docs)	2026-09-26 12:00Z
2026-09-27 12:00Z	2026-09-27 12:00Z	0.25	0.75	1	Gemini API pricing (docs)	2026-09-27 12:00Z	unconfirmed
2026-09-28 12:00Z	2026-09-28 12:00Z	0.25	—no output price published	1	Gemini API pricing (docs)	2026-09-28 12:00Z
2026-09-29 12:00Z	2026-09-29 12:00Z	0.25	0.75	1	Gemini API pricing (docs)	2026-09-29 12:00Z	unconfirmed
2026-09-30 12:00Z	2026-10-06 12:00Z	0.25	—no output price published	6	Gemini API pricing (docs)	2026-10-06 12:00Z
2026-10-07 12:00Z	2026-10-07 12:00Z	0.25	0.75	1	Gemini API pricing (docs)	2026-10-07 12:00Z	unconfirmed
2026-10-08 12:00Z	2026-10-13 12:00Z	0.25	—no output price published	5	Gemini API pricing (docs)	2026-10-13 12:00Z
2026-10-14 12:00Z	2026-10-14 12:00Z	0.25	0.75	1	Gemini API pricing (docs)	2026-10-14 12:00Z	unconfirmed
2026-10-15 12:00Z	2026-10-17 12:00Z	0.25	—no output price published	3	Gemini API pricing (docs)	2026-10-17 12:00Z

flat:priority

1 distinct value

One value across the whole archive: this price has not moved in anything we have observed.

Held steady63 days — the value published now has been observed to hold for 63 days, which is 42% of the longest run on this page.

Input 0.45
Output 2.7
First seen 2026-08-15 23:13Z
Last seen 2026-10-17 12:00Z
Reads 73
Last read 2026-10-17 12:00Z
Source Gemini API pricing (docs)

flat:priority_audio

12 distinct values

Held steady2 days — the value published now has been observed to hold for 2 days, which is 1% of the longest run on this page.

inputoutput8 windows nobody looked inhorizontal axis is time

Input 0.9, unchanged
Output 2.7, unchanged
Observed 2026-08-15 23:13Zto 2026-10-15 12:00Z

First seen	Last seen	Input USD/1M	Output USD/1M	Reads	Source	Last read	Flags
2026-08-15 23:13Z	2026-08-15 23:18Z	0.9	2.7	2	Gemini API pricing (docs)no url recorded	2026-08-15 23:18Z
2026-08-15 23:23Z	2026-08-15 23:23Z	0.9	—no output price published	1	Gemini API pricing (docs)no url recorded	2026-08-15 23:23Z	unconfirmed
2026-08-16 01:19Z	2026-08-16 01:19Z	0.9	2.7	1	Gemini API pricing (docs)	2026-08-16 01:19Z
2026-08-16 01:25Z	2026-09-26 12:00Z	0.9	—no output price published	50	Gemini API pricing (docs)	2026-09-26 12:00Z
2026-09-27 12:00Z	2026-09-27 12:00Z	0.9	2.7	1	Gemini API pricing (docs)	2026-09-27 12:00Z	unconfirmed
2026-09-28 12:00Z	2026-09-28 12:00Z	0.9	—no output price published	1	Gemini API pricing (docs)	2026-09-28 12:00Z
2026-09-29 12:00Z	2026-09-29 12:00Z	0.9	2.7	1	Gemini API pricing (docs)	2026-09-29 12:00Z	unconfirmed
2026-09-30 12:00Z	2026-10-06 12:00Z	0.9	—no output price published	6	Gemini API pricing (docs)	2026-10-06 12:00Z
2026-10-07 12:00Z	2026-10-07 12:00Z	0.9	2.7	1	Gemini API pricing (docs)	2026-10-07 12:00Z	unconfirmed
2026-10-08 12:00Z	2026-10-13 12:00Z	0.9	—no output price published	5	Gemini API pricing (docs)	2026-10-13 12:00Z
2026-10-14 12:00Z	2026-10-14 12:00Z	0.9	2.7	1	Gemini API pricing (docs)	2026-10-14 12:00Z	unconfirmed
2026-10-15 12:00Z	2026-10-17 12:00Z	0.9	—no output price published	3	Gemini API pricing (docs)	2026-10-17 12:00Z

Provenance

Read by llm (batch, batch:audio, cache_hit, cache_hit:audio, cache_hit:batch, cache_hit:batch_audio, cache_hit:flex, cache_hit:flex_audio, cache_hit:priority, cache_hit:priority_audio, flat, flat:audio, flat:flex, flat:flex_audio, flat:priority, flat:priority_audio) and openrouter_json (cache_write) from Gemini API pricing (docs), OpenRouter models API. Each row above links to the exact page its number came from. The vendor's page is authoritative: if it and this page disagree, the vendor is right and we are wrong.