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OpenAI: GPT-4o

GPT-4o ("o" for "omni") is OpenAI's latest AI model, supporting both text and image inputs with text outputs. $2.50 per million input tokens, $10 per million output tokens. 128,000 token context window, maximum output of 16,384 tokens. Higher uptime with 2 providers. Includes independent benchmarks from Artificial Analysis.

View source on OpenRouter
Overview

Model specifications

Context
128,000 tokens
Maximum output
16,384 tokens
Architecture
text+image+file->text
Tokenizer
GPT
Knowledge cutoff
2023-10-31
Moderated
Yes
OPENROUTER

Complete pricing

Synchronized OpenRouter rates. Token prices are shown per one million tokens.

Input
$2.5
/M tokens
Output
$10
/M tokens
Cache read
$1.25
/M tokens
API

Quick start

Call this exact model ID through OpenRouter’s OpenAI-compatible API.

curl https://openrouter.ai/api/v1/chat/completions \
  -H "Authorization: Bearer $OPENROUTER_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model":"openai/gpt-4o","messages":[{"role":"user","content":"Hello!"}]}'
Capabilities

Input → Output

Input
textimagefile
Output
text
API

Supported API parameters

frequency_penaltylogit_biaslogprobsmax_completion_tokensmax_tokenspredictionpresence_penaltyresponse_formatseedstopstructured_outputstemperaturetool_choicetoolstop_logprobstop_pweb_search_options
Available providers

2 providers

Live providers on OpenRouter

Provider availability, latency, throughput and routing can change continuously. Open the source page for current operational data.

OpenRouter

OpenAI

unknown
Context
128K
Maximum output
16K
Input
$2.50
Output
$10.00
Cache read
$1.25
Cache write
Not provided

Azure

unknown
Context
128K
Maximum output
16K
Input
$2.50
Output
$10.00
Cache read
Not provided
Cache write
Not provided
openai

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Context
Not provided
Input
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Context
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Input
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Context
1.1M
Input
file · image · text
Output
text
Input: $0.200Output: $1.20per 1M tokens
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OpenAI: GPT-5.6 Terra Pro

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Context
1.1M
Input
file · image · text
Output
text
Input: $2.00Output: $12.00per 1M tokens
View model details →