google

Google: Gemini 3.8 Flash

Gemini 3.8 Flash is a Google model that accepts text, image, video, audio, and file inputs, which makes it suitable for mixed-media workloads without a separate preprocessing step. It offers a context window of about 1.05 million tokens and can return up to 65,536 tokens in a single completion. It supports tool calling and reasoning. The available facts do not confirm structured output support or open weights, so readers who need either should check before committing. Pricing is $0.825 per million input tokens and $4.125 per million output tokens. That makes it a reasonable shortlist candidate for teams processing long documents or multimodal inputs where input volume dominates cost. Its blended benchmark score is 67.8, but that figure comes from only one independent benchmark. The model's standing is therefore thinly evidenced, and buyers should run their own task-specific evaluations before treating it as a proven choice.

Quality Score
100/100
price + capability + benchmarks
Input Price
$0.82
per 1M tokens · checked 2026-10-19
Output Price
$4.12
per 1M tokens · checked 2026-10-19
Context Window
1,048,576
tokens

Benchmark results

Independent, published benchmarks. Blended score 67.8 across 1 benchmark, last refreshed 2026-10-19. How scoring works →

BenchmarkMeasuresScore
AI Index broad capability composite 67.5
Model ID
google/gemini-3.8-flash
Vendor
google
Released
September 2026
Tokenizer
Gemini
Input Modalities
text, image, video, file, audio
Output Modalities
text
Max Output
65,536 tokens
Tool Calling
✓ supported
Structured Output
✓ supported
Reasoning Mode
✓ supported
Vision
✓ accepts images
Audio
✓ accepts audio
Moderated
no

What it costs in practice

Computed from the current $0.82/M input and $4.12/M output rates. Run your own numbers →

JobTokensCost
Summarize a 50-page report 30k in / 1.5k out $0.03
Classify 1,000 customer emails 500k in / 50k out $0.62
A month of a busy support chatbot 5M in / 2M out $12.38

Price & spec history

Tracked daily by PicksByModel since 2026-09-03.

DateInput /MOutput /MContext
2026-10-16 $0.82 $4.12 1,048,576
2026-09-03 $0.75 $3.75 1,048,576

Strong choice for

Category rankings

Where Google: Gemini 3.8 Flash places across the 12 categories it ranks in. How we rank →

#CategoryScore
#4 TranscriptionVoice · of 25 ranked 123
#9 Image CaptioningVision · of 25 ranked 121
#9 Audio SummarizationVoice · of 25 ranked 148
#9 TTS ReplacementVoice · of 25 ranked 115
#10 Video Auto-TaggingVideo · of 25 ranked 123
#16 Video SummarizationVideo · of 25 ranked 148
#17 Trivia & General KnowledgePersonal · of 25 ranked 116
#23 Short-Form SummarizationWriting · of 25 ranked 126
#23 Email DraftingWriting · of 25 ranked 122
#23 Language LearningEducation · of 25 ranked 122
#23 Chat CompanionPersonal · of 25 ranked 126
#24 Meeting NotesBusiness · of 25 ranked 140

Similar models

Quick answers

How much does Google: Gemini 3.8 Flash cost?
$0.82 per million input tokens and $4.12 per million output tokens.
What is Google: Gemini 3.8 Flash's context window?
1,048,576 tokens, roughly 1,572 pages of text in a single request.
Does Google: Gemini 3.8 Flash support tool calling?
It supports tool calling, structured output, a reasoning mode.
Can Google: Gemini 3.8 Flash process images?
Yes, it accepts image input.

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