Gemini 3.8 Flash — Specifications
Compiled by Mustafa Ihsan from the vendor’s published documentation · Last updated
| Desarrollador | |
|---|---|
| Tipo | Rápido / general |
| Modalidad | Text, Image, Video, Audio, PDF → Text |
| Parámetros | No revelado |
| Ventana de contexto | 1 millón |
| Salida máxima | 65 000 |
| Licencia | Propietario |
| Pesos abiertos | No |
| Lanzado | 2026-09 |
| Precio de entrada | $0.75 /1M |
| Precio de salida | $3.75 /1M |
| Proveedores de API | Gemini API (Google AI Studio), Android Studio, Gemini Enterprise |
Benchmarks
| Google-reported | HLE-Verified 54.9%. Prices are introductory until 31 Dec 2026. |
|---|
What is Gemini 3.8 Flash?
Gemini 3.8 Flash is Google’s fast, low-cost Gemini model, released on 2 September 2026. Google calls it its best reasoning and coding model yet at the speed and low cost of 3.7 Flash, with gains in software engineering, agentic tasks and multi-step reasoning; it reports 54.9% on HLE-Verified. A separate Gemini 3.8 Flash Cyber variant for vulnerability detection is restricted to vetted security teams.
API pricing is $0.75 per million input tokens and $3.75 output — an introductory price that Google says expires on 31 December 2026, and half of Gemini 3.6 Flash’s $1.50 / $7.50. Per Google’s API documentation (model code gemini-3.8-flash) it accepts text, images, video, audio and PDF, takes up to 1,048,576 input tokens and returns up to 65,536, and supports thinking levels, function calling, structured output, code execution, search grounding and caching. It does not generate images or audio.
In the Gemini app it is available to Google AI Pro and Ultra subscribers; Google’s plan page still lists Gemini 3.6 Flash for the free plan. It is also in AI Mode in Google Search, Google Sheets and Gemini Enterprise.
Gemini 3.8 Flash pricing: API cost per 1M tokens
| Entrada (por cada millón de tokens) | $0.750 |
|---|---|
| Salida (por cada millón de tokens) | $3.75 |
| Relación salida/entrada | 5× |
| Combinada (4:1 entrada:salida) | $1.35 por 1 millón de tokens |
What Gemini 3.8 Flash costs per month
Gasto mensual real con una mezcla entrada:salida de 4:1, es decir, la proporción que realmente genera una carga de trabajo típica de chat o RAG.
| Carga de trabajo | Tokens/mes | Coste mensual |
|---|---|---|
| Proyecto secundario | 1 millón de tokens de entrada / 0,25 millones de tokens de salida | $1.69 |
| Pequeño equipo | 20 millones de tokens de entrada / 5 millones de tokens de salida | $34 |
| Producción | 200 millones de tokens de entrada / 50 millones de tokens de salida | $338 |
Calcule sus propios números en la Calculadora de costos de API de IA.
Cheaper alternatives to Gemini 3.8 Flash
| Modelo | Dólares por millón combinados | Usted ahorra |
|---|---|---|
| Mistral 7B abierta | $0.0220 | 98% cheaper |
| Llama 3.1 8B abierta | $0.0220 | 98% cheaper |
| Mistral NeMo 12B abierta | $0.0240 | 98% cheaper |
Preguntas frecuentes
How much does Gemini 3.8 Flash cost per 1M tokens?
Gemini 3.8 Flash costs $0.750 per 1M input tokens and $3.75 per 1M output tokens. At a typical 4:1 input-to-output mix that blends to about $1.35 per 1M tokens.
How much does Gemini 3.8 Flash cost per month?
A small-team workload of 20M input and 5M output tokens a month costs about $34 on Gemini 3.8 Flash. A side project (1M in / 0.25M out) costs roughly $1.69.
What is a cheaper alternative to Gemini 3.8 Flash?
Mistral 7B is the strongest cheaper option in our database at $0.0220 per 1M blended — about 98% less than Gemini 3.8 Flash. It is also open-weight, so self-hosting is an option.
Can I run Gemini 3.8 Flash locally?
No. Gemini 3.8 Flash is a closed, API-only model — the weights are not released, so it cannot be self-hosted.
Why does Gemini 3.8 Flash charge more for output than input?
Output tokens are generated one at a time and cannot be batched the way a prompt can, so they cost the provider more to serve. Gemini 3.8 Flash charges 5× more for output, which is why prompt-heavy workloads are far cheaper to run than generation-heavy ones.
Compare los precios de todos los modelos Gemini uno al lado del otro: Precios de la API Gemini.
Los precios corresponden a las tarifas oficiales publicadas para la API principal del modelo y se revisan periódicamente conforme los proveedores los actualicen. No incluyen descuentos por volumen, procesamiento por lotes ni entradas en caché. Compare todos los modelos uno al lado del otro en la Base de datos de modelos de IA o el Clasificación de modelos de lenguaje grande (LLM).