Gemini · Fast / Budget · 1,000K context window

Gemini 3.5 Flash pricing for bug detection

$0.0255 per call at 5,000 input / 2,000 output tokens.

Per call

$0.0255

10K calls/mo

$255

Cache savings

90% off input

Batch savings

50% off all

Calculate your Gemini 3.5 Flash costs

Adjust token counts, volume, and discount toggles to model your bug detection spend. Prices verified daily against provider pricing pages.

Configure your usage

5,000
100100K
2,000
5050K
10,000
1001M

Estimated cost

Monthly cost
$255
10,000 calls/month
Cost per call$0.0255
Daily cost$9
Input rate$1.50/MTok
Output rate$9.00/MTok
Analyze your real spend

Quick start

Call Gemini 3.5 Flash with the Google Generative AI SDK:

import google.generativeai as genai

model = genai.GenerativeModel("gemini-3.5-flash")
response = model.generate_content("Your prompt here")
# Cost: ~$0.0255 per call at standard rates
# Input:  $1.50/MTok
# Output: $9.00/MTok

How Gemini 3.5 Flash compares on cost

Per-call cost for all models scoring 50+ on bug detection benchmarks. Hover for details.

Cheapest viable option: Claude Sonnet 5 at $0.0300/call (-18% less, 96/100 quality).

What drives bug detection cost

Bug detection sends a file and gets back a short list of suspected defects, so input dominates and output stays small. That makes it cheap per call and tempting to run continuously, which is the real cost driver: frequency, not per-call price. Caching the unchanged parts of the codebase and running only on changed files is worth more than switching models.

For Gemini 3.5 Flash specifically, that means output tokens cost 6.0x more than input, at $9.00 vs $1.50 per MTok. At this use case’s 5,000/2,000 token split, output accounts for 71% of the $0.0255 per-call cost.

Complete Gemini 3.5 Flash pricing breakdown

Standard token rates

Direction$/MTokTokens per call
Input$1.505,000
Output$9.002,000

Prompt caching: 90% off input tokens

Caching drops input cost from $1.50 to $0.15/MTok. For repeated system prompts, that saves $0.006750 per call.

Batch API: 50% off all tokens

Submit requests asynchronously and receive 50% off all token costs. This works best for offline pipelines where latency requirements are flexible.

Monthly cost projections

Monthly volumeCost per callStandard monthlyCached monthlyYou save with caching
10,000 calls$0.0255$255$187.5$67.5
50,000 calls$0.0255$1,275$937.5$337.5
100,000 calls$0.0255$2,550$1,875$675
500,000 calls$0.0255$12,750$9,375$3,375
1,000,000 calls$0.0255$25,500$18,750$6,750

Gemini 3.5 Flash quality benchmarks for bug detection

Consider alternatives for bug detection

Scores 65/100 (rank #6 of 20). Better options exist at similar price points for bug detection.

Top-ranked: Claude Sonnet 5 (96/100) at $0.0300/call

Performance across all task types

Gemini 3.5 Flash scores by task type. Bug Detection highlighted.

Classification92Extraction90Summarization85Q&A84Code Generation68Code Review *65Reasoning60Creative Writing55
Task typeConfidence scoreRank out of 20
Classification92/100#1
Extraction90/100#1
Summarization85/100#3
Q&A84/100#5
Code Generation68/100#7
Code Review(current page)65/100#6
Reasoning60/100#6
Creative Writing55/100#6

Confidence scores are a third-party benchmark snapshot from week 29 of 2026. This snapshot is 8 weeks old, so treat the scores as directional and validate against your own evals.

Alternative models for bug detection

9 models score 80+ on bug detection benchmarks, sorted by input rate. Cheapest: Claude Sonnet 5 (-18% less, 96/100 quality).

ModelProviderInput $/MTokOutput $/MTokQualityPer callvs Gemini
Claude Sonnet 5Claude$2.00$10.0096/100$0.030018% more
GPT 5.6 TerraGPT$2.00$12.0084/100$0.034033% more
Gemini 3.1 ProGemini$2.00$12.0084/100$0.034033% more
GPT 5.4GPT$2.50$15.0082/100$0.042567% more
Claude Sonnet 4.6Claude$3.00$15.0095/100$0.045076% more
GPT 5.6 SolGPT$4.00$20.0092/100$0.0600135% more
Claude Opus 4.8Claude$5.00$25.0094/100$0.0750194% more
GPT 5.5GPT$5.00$30.0090/100$0.0850233% more
Claude Fable 5Claude$10.00$50.0095/100$0.1500488% more

About Gemini 3.5 Flash

Provider

Gemini

Tier

Fast / Budget

Context

1,000K tokens

Released

May 2026

Other models from Gemini

ModelTierInput $/MTokOutput $/MTokContext
Gemini 3.1 ProMid-tier$2.00$12.001,000K
Gemini 3 FlashFast / Budget$0.50$3.001,000K
Gemini 3.5 Flash-LiteFast / Budget$0.30$2.501,000K

You can compare Gemini 3.5 Flash head-to-head against any other model on our model comparison pages, or track how pricing has changed over time on the pricing history tracker.

Frequently asked questions

How much does Gemini 3.5 Flash cost for bug detection per API call?

A typical bug detection call using Gemini 3.5 Flash costs about $0.0255 per call. This estimate uses 5,000 input tokens and 2,000 output tokens at standard rates. Standard rates are $1.50 per million input tokens and $9.00 per million output tokens.

Is Gemini 3.5 Flash the best model for bug detection?

Gemini 3.5 Flash scores 65 out of 100 on bug detection benchmarks overall. It ranks #6 across all 20 models in our cross-provider registry. The highest-ranked model for this task is Claude Sonnet 5 from Claude. That model scores 96/100 on this task type. Confidence scores are a third-party benchmark snapshot from week 29 of 2026. This snapshot is 8 weeks old, so treat the scores as directional and validate against your own evals.

What is the cheapest model for bug detection with good quality?

The most affordable model for bug detection above 80/100 quality is Claude Sonnet 5. It comes from Claude at $2.00 per million input tokens. Output costs $10.00 per million tokens with a quality score of 96/100. Switching from Gemini 3.5 Flash to Claude Sonnet 5 saves about -18% per API call.

How can I reduce my Gemini 3.5 Flash costs for bug detection?

Three strategies lower Gemini 3.5 Flash costs for this task type effectively. Prompt caching gives a 90% discount on input tokens when reusing system prompts. The batch API gives 50% off all tokens for asynchronous processing workloads. Prompt optimization reduces token counts through more concise instructions and context windows. Combining caching with batching brings your cost from $0.0255 to about $0.001275 per call.

How does Gemini 3.5 Flash pricing compare to other Gemini models?

Gemini has 3 other models alongside Gemini 3.5 Flash today: Gemini 3.1 Pro at $2.00/$12.00 per million tokens (mid-tier), Gemini 3 Flash at $0.50/$3.00 per million tokens (fast / budget), Gemini 3.5 Flash-Lite at $0.30/$2.50 per million tokens (fast / budget). The right choice depends on whether your bug detection workload prioritizes quality, cost, or speed.

What context window does Gemini 3.5 Flash support?

Gemini 3.5 Flash supports a context window of 1,000K tokens per API call. This sets the maximum combined length of your input prompt and generated response. For bug detection, typical calls use 5,000 input and 2,000 output tokens. That is well within this limit, leaving room for longer prompts or multi-turn conversations.

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