Google Gemini API pricing

Models: 12; 5 scored
Cheapest call: $0.0033; Gemma 4 26B A4B (Workers AI)
Dearest call: $0.0814; Gemini 3.1 Pro
Best bugs caught: 82%; Gemini 4 Argon
Newest: 2026-10-13; Gemini 4 Argon

Pricing

Google models' list prices per 1M tokens, one review call and reading a pull request.

Gemma 4 26B A4B (Workers AI)on Cloudflare Workers AI	$0.10	$0.30	–	$0.0033	$0.0026
Gemini 2.5 Flash-Lite	$0.10	$0.40	$0.01	$0.0036	$0.0026
Gemini 3.1 Flash-Lite	$0.25	$1.50	$0.025	$0.0102	$0.0066
Gemini 2.5 Flash	$0.30	$2.50	$0.03	$0.0139	$0.0079
Gemini 3.5 Flash-Lite	$0.30	$2.50	$0.03	$0.0139	$0.0079
Gemini 3.8 FlashFrom 2027-01-01: $1.50 / $7.50	$0.75	$3.75	$0.075	$0.0287	$0.0197
Gemini 3.6 FlashFrom 2027-01-01: $1.50 / $7.50	$0.75	$3.75	$0.075	$0.0287	$0.0197
Gemini 3.7 Flashon OpenRouter	$0.75	$3.75	–	$0.0287	$0.0197
Gemini 2.5 ProAbove 200K in: $2.50 / $15.00	$1.25	$10.00	$0.125	$0.0569	$0.0328
Gemini 4 ArgonFrom 2026-12-01: $4.00 / $20.00	$2.00	$10.00	$0.10	$0.0766	$0.0524
Gemini 3.1 ProAbove 200K in: $4.00 / $18.00	$2.00	$12.00	$0.20	$0.0814	$0.0524
Gemini 3.5 Flashretired	$1.50	$9.00	–	$0.0611	$0.0393

Benchmark

Benchmark results
Compare
	1=	Gemini 4 ArgonGoogle · Mid-range	82%	84%	98%	1.1	$0.0527	$0.0706	99s
	1=	Gemini 3.8 FlashGoogle · Mid-range	68%	68%	87%	1.0	$0.0862	$0.1166	427s
	2	Gemini 3.1 ProGoogle · Mid-range	67%	70%	99%	0.8	$0.2499	$0.4134	349s
	13	Gemma 4 26B A4B (Workers AI)Google · Economy · open weights	26%	27%	91%	0.4	$0.0048	$0.0209	308s
	16	Gemini 3.5 Flash-LiteGoogle · Economy	11%	11%	98%	0.4	$0.0059	$0.0528	103s

By language and bug kind

Share of known bugs each model caught, by language
Model	All	TypeScript6 bugs	Go4 bugs	Java4 bugs	Rust4 bugs	C#3 bugs	JavaScript3 bugs	Kotlin3 bugs	PHP3 bugs	Python3 bugs	Ruby3 bugs	Swift3 bugs	C++2 bugs	C1 bug
Gemini 4 Argon	82%	83%	50%	83%	75%	89%	67%	100%	100%	83%	100%	100%	100%	0%
Gemini 3.8 Flash	68%	83%	75%	43%	75%	78%	67%	0%	50%	83%	100%	100%	50%	50%
Gemini 3.1 Pro	67%	67%	38%	78%	88%	56%	33%	67%	67%	67%	100%	100%	50%	50%
Gemma 4 26B A4B (Workers AI)	26%	33%	0%	30%	38%	7%	0%	56%	33%	44%	67%	0%	0%	0%
Gemini 3.5 Flash-Lite	11%	33%	0%	5%	0%	0%	0%	33%	0%	17%	0%	0%	50%	0%

Quality against cost

Higher catches more · further left is cheaper

GoogleFaded: models outside this list95% range: the line through each point

Every point as a table

Bugs caught and measured cost per review, by model
Model	Bugs caught	95% range	Cost / review
Gemini 4 Argon	82%	71%–92%	$0.0527
Gemini 3.8 Flash	68%	54%–81%	$0.0862
Gemini 3.1 Pro	67%	54%–80%	$0.2499
Gemma 4 26B A4B (Workers AI)	26%	15%–38%	$0.0048
Gemini 3.5 Flash-Lite	11%	3%–21%	$0.0059

Other benchmarks

Outside benchmarks by model
Model	Arena WebDev	Arena Agent	Epoch Capabilities Index
Gemini 4 Argon	1678High · range 1663 to 1694	0.132High · range 0.119 to 0.146	165range 162 to 169
Gemini 3.1 Pro	1447range 1442 to 1452	-0.040range -0.054 to -0.026	155range 153 to 157
Gemini 2.5 Pro	1226range 1210 to 1242	–	145range 144 to 147
Gemini 3.8 Flash	1585High · range 1578 to 1593	0.037High · range 0.026 to 0.049	157range 155 to 161
Gemini 3.6 Flash	1538High · range 1531 to 1546	–	154range 153 to 156
Gemini 2.5 Flash	–	–	141range 139 to 142
Gemini 3.5 Flash-Lite	1441range 1401 to 1482	–	145range 143 to 147
Gemini 3.1 Flash-Lite	–	–	145range 142 to 146
Gemini 3.7 Flash	1591High · range 1584 to 1597	-0.007High · range -0.016 to 0.002	157range 155 to 160

Source: LMArena CC BY 4.0, Oct 16, 2026 · Epoch AI CC BY 4.0, Oct 7, 2026

Families

Other makers

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Updated Oct 23, 2026All prices pricing.json