Google · Documents, media and automation
Gemini 3.8 Flash
Processes text, images, audio and video; the output is text.
- Costs
- $0.75 input / $3.75 output per million tokens through December 31, 2026. From January 1, 2027: $1.50 / $7.50.
- Speed
- We have not independently measured speed on a comparable basis.
- Availability
- Gemini API and Google AI Studio
- Input length
- 1,048,576 input tokens; output capped at 65,536 tokens.
- Inputs
- Text, images, video, audio and PDF → text
Data checked . Published September 2, 2026. Specifications and prices are provided by the vendor; usage recommendations come from the editorial team. We do not yet have our own comparative test of this version.
Ideal use
When to choose it
- Analysis of documents, audio and video
- Programming and multi-step business tasks
Usage boundaries
When to choose another model
- A different model is needed to generate images or audio directly.
Traceable supporting sources
Data and measurement sources
Distinguish between the manufacturer's documentation and the results of a specific test. Measurements also depend on the settings and the task set used.
Vendor documentation
Specifications, availability, and termsManufacturer data verified as of the review date. Recommended use is an editorial interpretation.
Open original source ↗Pricing
Price and its validity periodStandard API rates; the app subscription is billed separately.
Open original source ↗Efficiency in practice
With what Gemini 3.8 Flash combine
Many tasks without unnecessary costs
A low-cost model handles routine work, and the more expensive one gets only the truly difficult cases.
Use your own data to verify when a stronger model should take over the work. A model cannot reliably assess its own answer.Documents → analysis → verification
A fast model prepares the material, and a stronger model focuses on analyzing it.
Agreement between two models is not proof; the cited inputs are what matters.Trends over time
Related events from AI Radar
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New: API credits per dollar halved; Pro plan at $200/month reopened to new users; 5-hour window for the weekly allotment removed; Strategic shift from subsidized subscription models to pay-per-use pricing; Microsoft is making similar changes with Copilot
Users considering the OpenAI Pro plan at $200/month now also benefit from the removal of the 5-hour limit, but those paying through the API receive fewer credits for the same dollar than before — the new lower prices of the GPT-6 Sol and Luna models only partially offset this.
Companies using the OpenAI API should recalculate their AI operating costs, because the number of credits per dollar is changing and the price of the new GPT-6 Sol and Luna models has also fallen by 50 % compared with the 5.6 series — the net impact on the budget depends on the specific usage volume and types of models used.
GitHub recommends Claude Opus 5.5 following the retirement of Claude Opus 4.7
New: The recommended replacement for Claude Opus 4.7 is Claude Opus 5.5, not Claude Opus 5.
When switching from Claude Opus 4.7, follow the current recommendation to use Claude Opus 5.5; the earlier announcement listed a different replacement.
Migrating company workflows and integrations to supported models may require enabling replacement models through access policies in Copilot Enterprise or Copilot Business.
Next step
Compare the model using your actual task.
A benchmark narrows the selection. A short trial on your data determines the choice.