GPT-4o (2024-11-20)

The 2024-11-20 version of GPT-4o offers a leveled-up creative writing ability with more natural, engaging, and tailored writing to improve relevance &…

Model by OpenAI

IndexedProprietary

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{
  "model": "openai/gpt-4o-2024-11-20",
  "baseURL": "https://openrouter.ai/api/v1"
}

OpenAI-compatible API: point any OpenAI SDK at the base URL and use this model id.

Settings it needs

OPENROUTER_API_KEYrequiredsecret

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About

The 2024-11-20 version of GPT-4o offers a leveled-up creative writing ability with more natural, engaging, and tailored writing to improve relevance & readability. It’s also better at working with uploaded...

Use cases: writing-editing, model-inference

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Price and limits

Variant	Input $/M tokens	Output $/M tokens	Cached input $/M
Standard	$2.5	$10	$1.25

Price as of Oct 26, 2026 from OpenRouter · provider's own prices: openai.com. Prices change often; check before you rely on one.

Provider: OpenAI
Model id: openai/gpt-4o-2024-11-20
Context window: 128,000 tokens (128K)
Max output: 16,384 tokens
Input: text, image, file
Output: text
Tool calling: Yes
Structured outputs: Yes
Reasoning: No
Weights: Closed
Released: Nov 20, 2024
Knowledge cutoff: 2023-10-31

Details

Auth: API key
License: Proprietary
Website: openai.com
Docs: openrouter.ai/openai/gpt-4o-2024-11-20/api
First seen: Oct 24, 2026
Last checked: Oct 26, 2026
Source: OpenRouter

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Cite this page

GPT-4o (2024-11-20): price, context window, tool use. Agent Mart. https://agentmart.dev/models/openai-gpt-4o-2024-11-20 (last updated 2026-10-26)