GoogleFastHigh

Gemini 3.5 Flash

Google's latest Flash-tier workhorse model. Flat pricing across all input modalities (text, image, video, audio, PDF) at $1.50/$9 per million tokens with no long-context premium, a 1M token context window, and 65,536 max output tokens. Cached inputs get a 90% discount.

2,787/16,722credits

input / output · per 1M tokens

Flat pricing across all input modalities

No long-context premium

1M token context window

65,536 max output tokens

Cached input pricing (90% discount)

Function calling, structured outputs, thinking, search grounding, code execution

Run it right now

Test this model instantly in the Console Playground — no code required

Use with AI Assistant

Copy usage instructions for Claude, ChatGPT, or other AI

llms.txtllms.txt ↗

Model Specifications

Context Window

tokens

Max Output

66K

tokens

Training Cutoff

2025-01

Compatible SDK

OpenAI, Google AI

Capabilities

Vision

Function Calling

Streaming

JSON Mode

System Prompt

Token Pricing (per 1M tokens)

Token Type	Credits	USD Equivalent
Input Tokens	2,787	$1.86
Output Tokens	16,722	$11.15
Cached Tokens	279	$0.19

* 1,500 credits ≈ $1 (actual charges may vary based on usage)

Quick Start

curl -X POST "https://api.core.today/llm/gemini/v1beta/openai/chat/completions" \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer cdt_your_api_key" \
  -d '{
  "model": "gemini-3.5-flash",
  "messages": [
    {
      "role": "user",
      "content": "Summarize the attached contract PDF and list every deadline it mentions."
    }
  ],
  "max_tokens": 2000
}'

Parameters

Parameter	Type	Required	Default	Description
`messages`	array	Yes	-	Array of message objects (OpenAI format). Supports text, image, audio, video, and PDF inputs.
`temperature`	float	No	1	Sampling temperature (0-2). Lower values produce more deterministic outputs.
`max_tokens`	integer	No	-	Maximum output tokens. Max: 65,536. Context window (input + output): 1M tokens.
`response_format`	object	No	-	Output format constraint. Use `{ type: 'json_object' }` for structured JSON output.
`stream`	boolean	No	false	Enable Server-Sent Events streaming.

Examples

Multimodal Document Analysis

Analyze a PDF at the same flat token rate as text

curl -X POST "https://api.core.today/llm/gemini/v1beta/openai/chat/completions" \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer cdt_your_api_key" \
  -d '{
  "model": "gemini-3.5-flash",
  "messages": [
    {
      "role": "user",
      "content": "Summarize the attached contract PDF and list every deadline it mentions."
    }
  ],
  "max_tokens": 2000
}'

Production Chat

High-throughput assistant responses with streaming

curl -X POST "https://api.core.today/llm/gemini/v1beta/openai/chat/completions" \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer cdt_your_api_key" \
  -d '{
  "model": "gemini-3.5-flash",
  "messages": [
    {
      "role": "user",
      "content": "Explain the difference between ECS and EKS briefly."
    }
  ],
  "stream": true,
  "max_tokens": 800
}'