OpenAI · MultimodalReleased 2024-05-13

gpt-4o-fast

openai/gpt-4o-fast id

GPT-4o from OpenAI has broad general knowledge and domain expertise allowing it to follow complex instructions in natural language and solve difficult problems accurately. It matches GPT-4 Turbo performance with a faster and cheaper API.

Tool useChatWeb searchStructured output

Type

Use gpt-4o-fast

# Drop-in OpenAI-compatible client
$ import { generateText } from 'ai'
$ 
$ const { text } = await generateText({
$   model: 'openai/gpt-4o-fast',
$   baseURL: 'https://synapse.garden/api/v1',
$   apiKey: process.env.MG_KEY,
$   prompt: 'Why is the sky blue?',
$ })

128K

CONTEXT WINDOW

16.4K

MAX OUTPUT

$4.68/M

INPUT · PER M

$18.70/M

OUTPUT · PER M

PRICING

List prices, every modality.

Rate	Per million tokens · USD
Input	$4.68/M
Output	$18.70/M
Cache read	$2.34/M

Honest list pricesHow we calculate prices

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Input
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Context
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FAQ · GPT-4O-FAST

Frequently asked

01 / 04

How do I call gpt-4o-fast from my code?

Use the OpenAI or Anthropic SDK and point baseURL at https://synapse.garden/api/v1. Set model: ‘openai/gpt-4o-fast’ and supply your Synapse Garden API key. No code changes beyond the base URL.

02 / 04

How much does gpt-4o-fast cost?

Input: $4.68/M per million tokens. Output: $18.70/M per million tokens. The free tier includes a million tokens every month at no cost.

03 / 04

What's the context window for gpt-4o-fast?

gpt-4o-fast supports a context window of 128K tokens, with a maximum output of 16.4K tokens.

04 / 04

Do I need a separate Anthropic or OpenAI account?

No. Synapse Garden is the single API surface — one key gives you OpenAI, Anthropic, Google, Meta, Mistral, DeepSeek, xAI, Cohere, and more. Billing, rate limits, and audit logs are unified.

READY

Try gpt-4o-fast in three minutes.

Sign up, create a key, drop our base URL into your existing client. The free tier includes a million tokens every month — no credit card.

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