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Gemini 3.8 Flash: fiche technique, prix API et données

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Google gemini-3.8-flash — drawn card, not a photograph of the product

GoogleAI Models & LLMs

Context window
1,048,576 tokens
Maximum output
65,536 tokens
Input cost per 1M tokens
$0.75
Output cost per 1M tokens
$3.75

You use it and pay per use through the vendor's API, per million tokens: there is no shop. The list prices are in the data sheet below.

Data sheet · Gemini 3.8 Flash

Every figure is quoted from the vendor's official page, with the date we read it. If a row is missing, the source does not state it and we do not estimate it.

Memory and answer length

Context window
1,048,576 tokensRank 5 of 21
What it means and the source

How much text the model keeps in view in a single request, question and answer included. It matters for long documents and whole code projects. A token is a fragment of a word.

ai.google.devOpens the source in a new tab Oct 23, 2026
Maximum output
65,536 tokensRank 15 of 16
What it means and the source

The longest answer it can write in one go: useful for reports, long code or translations of whole documents.

ai.google.devOpens the source in a new tab Oct 23, 2026

API prices

Input cost per 1M tokens
$0.75Rank 5 of 21
What it means and the source

What it costs to have the model read a million tokens (your question, the documents, the code). It is the official list price, before discounts.

ai.google.devOpens the source in a new tab Oct 23, 2026
Cached input cost per 1M tokens
$0.075Rank 5 of 20
What it means and the source

The reduced price when part of the request is identical to one sent recently, for example the same instructions or the same document: the vendor keeps it in memory and charges less for it.

ai.google.devOpens the source in a new tab Oct 23, 2026
Output cost per 1M tokens
$3.75Rank 6 of 21
What it means and the source

What a million tokens written by the model cost. It usually costs more than the input and is the figure to watch when answers are long.

ai.google.devOpens the source in a new tab Oct 23, 2026

Knowledge and abilities

Reads images
Yes13 models out of 23
What it means and the source

The model can take images (photos, screenshots, charts) as well as text.

ai.google.devOpens the source in a new tab Oct 23, 2026
Calls tools and functions
Yes12 models out of 23
What it means and the source

The model can call functions and tools (search, calculations, other applications) to take actions and not only write text: it matters for assistants and agents.

ai.google.devOpens the source in a new tab Oct 23, 2026

Where it stands · Gemini 3.8 Flash

The same verified figures, next to those of the other catalogue models. Tap a model for the head-to-head.

Context windowRank 5 of 21 · higher is better
  1. 1GPT-5.6 Sol1.05M tokens
  2. 1GPT-6 Astra1.05M tokens
  3. 1GPT-6 Luna1.05M tokens
  4. 1GPT-6.1 Sol1.05M tokens
  5. 5Gemini 3.8 Flash1,048,576 tokens
  6. 5Gemini 4 Argon1,048,576 tokens
Maximum outputRank 15 of 16 · higher is better
  1. 1DeepSeek V4 Pro384k tokens
  2. 1DeepSeek V4.1 Flash384k tokens
  3. 3Claude Fable 5.1128k tokens
  4. 3Claude Haiku 5.5128k tokens
  5. 3Claude Opus 5.5128k tokens
  6. 15Gemini 3.8 Flash65,536 tokens
Input cost per 1M tokensRank 5 of 21 · lower is better
  1. 1Claude Haiku 5.5$0.10
  2. 1GPT-6 Luna$0.10
  3. 3DeepSeek V4.1 Flash$0.30
  4. 4GLM-4.6$0.60
  5. 5Gemini 3.8 Flash$0.75
  6. 6Claude Haiku 4.5$1.00
Output cost per 1M tokensRank 6 of 21 · lower is better
  1. 1Claude Haiku 5.5$0.50
  2. 1GPT-6 Luna$0.50
  3. 3DeepSeek V4.1 Flash$1.20
  4. 4GLM-4.6$2.20
  5. 5GLM-5$3.20
  6. 6Gemini 3.8 Flash$3.75

Questions and answers

Gemini 3.8 Flash: how much does it cost through the API?

The official list price is $0.75 per 1M input tokens and $3.75 per 1M output tokens.

Gemini 3.8 Flash: how much text can it read at once?

The context window is 1,048,576 tokens. It can write answers of up to 65,536 tokens.

L’essentiel

Sur Google Gemini 3.8 Flash, la donnée qui compte vraiment est Fenêtre de contexte : 1,048,576. Je l’ai relevé chez Google – Gemini 3.8 Flash. Parmi les 21 que j’ai vérifiés, 4 font mieux. L’autre chiffre à regarder est Coût par million de jetons en sortie : 3.75.

Les chiffres de Google Gemini 3.8 Flash

Je les ai classés par importance, avec la valeur et la position face aux autres que j’ai vérifiés.

Fenêtre de contexte : 1,048,576. Position 5 sur les 21 que j’ai comparés.

Coût par million de jetons en sortie : 3.75. Position 6 sur les 21 que j’ai comparés.

Coût par million de jetons en entrée : 0.75. Position 5 sur les 21 que j’ai comparés.

Appelle des outils et des fonctions : 1. C’est la meilleure valeur parmi les 12 que j’ai comparés.

Coût d’entrée en cache par 1M de tokens (USD) : 0.075. Position 16 sur les 20 que j’ai comparés.

Lit les images : 1. C’est la meilleure valeur parmi les 13 que j’ai comparés.

Subject illustration: Illustration of an application (illustrative image, not a photo of the product)
À qui il s’adresse

Choisis-le si Appelle des outils et des fonctions est ta priorité : 1, et aucun de ceux que j’ai vérifiés ne fait mieux.

Il te convient si tu cherches Lit les images : 1.

Regarde ailleurs si ce qui compte pour toi est Fenêtre de contexte : ici c’est 1,048,576, et 4 produits font mieux.

Pour aller plus loin

Sources

Ask Sir Compare:Explain these numbers to me

Reviews and tests

Google Gemini 3.8 Flash

Reviews and tests · Google Gemini 3.8 Flash

Reviews are not available yet.

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