Google Gemini API Pricing 2026: Gemini 3.7 Flash Introductory Rates

Gemini 3.7 Flash is Google’s newest GA Flash model. It launched on August 13, 2026 for complex coding, multimodal reasoning, and multi-step agents. Google is offering an introductory rate through December 31, 2026 and applies the same lower rate to Gemini 3.6 Flash.

The current standard synchronous price is $0.75/M input, $0.075/M cached input, and $3.75/M output. On January 1, 2027, it is scheduled to become $1.50/$0.15/$7.50.

Current Gemini API Prices

USD per million tokens for standard synchronous use:

Model	Input	Cached input	Output	Context	Max output
Gemini 3.7 Flash, through Dec 31	$0.75	$0.075	$3.75	1,048,576	65,536
Gemini 3.6 Flash, through Dec 31	$0.75	$0.075	$3.75	1,048,576	65,536
Gemini 3.5 Flash-Lite	$0.30	$0.03	$2.50	1,048,576	65,536
Gemini 3.5 Flash	$1.50	$0.15	$9.00	1,048,576	65,536
Gemini 3.1 Pro Preview, up to 200K	$2.00	$0.20	$12.00	1,048,576	65,536
Gemini 2.5 Flash	$0.30	$0.03	$2.50	1M	65,536
Gemini 2.5 Flash-Lite	$0.10	$0.01	$0.40	1M	65,536

Gemini 3.7 and 3.6 cache storage is $0.50 per million tokens per hour during the introductory period, increasing to $1.00 on January 1.

Gemini 3.7 vs 3.6 Flash

The two models currently have the same token price, context size, maximum output, native input types, and built-in tool suite. Google positions 3.7 as the more capable workhorse for software engineering, web development, design adherence, and agentic execution.

For a new production integration, start evaluation with gemini-3.7-flash. Keep gemini-3.6-flash only where regression testing, prompt behavior, or rollout controls justify the older version.

Introductory vs 2027 Price

Model	Period	Input	Cached input	Output
Gemini 3.7 / 3.6 Flash	Through 2026-12-31	$0.75	$0.075	$3.75
Gemini 3.7 / 3.6 Flash	From 2027-01-01	$1.50	$0.15	$7.50

Do not use the 2026 promotional rate as a permanent forecast. Budget both the current bill and the scheduled 2027 bill.

Batch and Flex

Model	Current Batch/Flex input	Cached input	Output
Gemini 3.7 Flash	$0.375	$0.0375	$1.875
Gemini 3.6 Flash	$0.375	$0.0375	$1.875
Gemini 3.5 Flash-Lite	$0.15	$0.02	$1.25
Gemini 3.5 Flash	$0.75	$0.075-$0.08	$4.50

Batch and Flex suit offline extraction, indexing, evaluation, and queued agent tasks. Priority inference is more expensive and should be reserved for latency-sensitive traffic.

What Gemini 3.7 Supports

Field	Gemini 3.7 Flash
Model ID	gemini-3.7-flash
Status	GA
Input	Text, image, video, audio, PDF
Output	Text
Thinking levels	low, medium, high
Tools	Search, Maps, code execution, file search, URL context, function calling, computer use preview
Consumption tiers	Standard, Batch, Flex, Priority

Sampling parameters temperature, top_p, and top_k are deprecated for the latest Gemini generation. Google recommends thinking_level rather than the older thinking_budget approach when migrating.

Cost Examples

At the current introductory synchronous rate, with no cache hits:

Daily usage	Gemini 3.7 Flash monthly	Gemini 3.5 Flash-Lite monthly
100K input + 50K output	$7.88	$4.65
1M input + 500K output	$78.75	$46.50
10M input + 5M output	$787.50	$465.00

The same Gemini 3.7 traffic doubles after the scheduled 2027 price change. Batch/Flex can halve token rates for eligible asynchronous work.

Which Gemini Should You Use?

• Use Gemini 3.7 Flash for current coding, agent, multimodal, and Google-grounded production work.
• Use Gemini 3.6 Flash only when compatibility or controlled rollout matters; it no longer has a price advantage.
• Use Gemini 3.5 Flash-Lite for cheaper high-volume multimodal routing.
• Use Gemini 2.5 Flash-Lite for the lowest-cost compatible legacy workload, after checking lifecycle status and quality.
• Use Gemini 3.1 Pro Preview only when its specific Pro behavior justifies preview and long-context pricing constraints.

Read Grok 4.6 vs Gemini 3.7 Flash and use the AI Pricing Calculator for your token mix.

Official sources checked August 17, 2026: Gemini pricing, Gemini 3.7 Flash model page, latest model guide, and Gemini API changelog.