How much does GPT-4o (2024-05-13) cost per month?

For a chatbot handling 10,000 requests a day with 1,000 input and 500 output tokens each, GPT-4o (2024-05-13) costs about $3,750 per month at OpenAI's list prices ($5.00 per 1M input tokens, $15.00 per 1M output tokens).

Does GPT-4o (2024-05-13) support prompt caching?

No cache read price is published for GPT-4o (2024-05-13).

How long is GPT-4o (2024-05-13)'s context window?

GPT-4o (2024-05-13) accepts up to 128,000 tokens (128K) of context and returns up to 4,096 tokens per response.

GPT-4o (2024-05-13) API Pricing

OpenAI has deprecated this model. The price is kept here for reference; check the provider's documentation before building on it.

OpenAI · released May 13, 2024 · 128K context · API model ID gpt-4o-2024-05-13

GPT-4o (2024-05-13) by OpenAI API pricing: $5.00 per 1M input tokens and $15.00 per 1M output tokens (provider list price via models.dev, Oct 10, 2026).

Prices

GPT-4o (2024-05-13) prices, USD per 1M tokens
Price	USD per 1M tokens
Input	$5.00
Output	$15.00
Cache read	Not published
Cache write	Not published

OpenAI's list price for its own API, as compiled by models.dev and checked Oct 10, 2026, 09:00 UTC. Prices on cloud platforms and resellers can differ. Provider documentation

Estimated monthly cost

$3,750

per month

per day: $125.00
per request: $0.0125

Cost = input tokens × input price + output tokens × output price, 30 days a month. Cached input uses the cache read price. Cache write fees are not included.

Compare this workload across models

Monthly cost by workload

Workload	Per month
Chatbot1,000 in / 500 out tokens, 10,000 requests a day	$3,750/mo
RAG8,000 in / 500 out tokens, 5,000 requests a day	$7,125/mo
Coding agent50,000 in / 2,000 out tokens, 1,000 requests a day, 80% cached input	$8,400/mo

Context and capabilities

Context: 128,000 tokens
Max output: 4,096 tokens
Input: text, image
Output: text
Knowledge cutoff: September 2023
Open weights: No
Tool calling: Yes
Reasoning: No
Structured outputs: Yes

Capabilities and limits as listed by models.dev.

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Claude Sonnet 5.5 · $2.00 in / $10.00 out

Price history

No price changes since we started tracking on Oct 8, 2026.

Questions

How much does GPT-4o (2024-05-13) cost per month?: For a chatbot handling 10,000 requests a day with 1,000 input and 500 output tokens each, GPT-4o (2024-05-13) costs about $3,750 per month at OpenAI's list prices ($5.00 per 1M input tokens, $15.00 per 1M output tokens).
Does GPT-4o (2024-05-13) support prompt caching?: No cache read price is published for GPT-4o (2024-05-13).
How long is GPT-4o (2024-05-13)'s context window?: GPT-4o (2024-05-13) accepts up to 128,000 tokens (128K) of context and returns up to 4,096 tokens per response.