How many providers offer GPT-4o and GPT-5?

GPT-4o is available from 4 providers and GPT-5 is available from 4 providers. 4 providers offer both models, making it easy to switch between them.

What is the context window for GPT-4o vs GPT-5?

GPT-4o has a 128K context window and GPT-5 has a 272K context window.

How is blended price calculated?

Blended price uses the formula (3 x input + 1 x output) / 4 per million tokens, reflecting typical usage where input tokens outnumber output tokens roughly 3:1.

GPT-4o vs GPT-5 — API Pricing Comparison 2026

Compare GPT-4o and GPT-5 API pricing. OpenAI previous-gen vs latest — see how much more the newest model costs across providers.

$4.38

GPT-4o cheapest

$3.44

GPT-5 cheapest

128K

GPT-4o context

272K

GPT-5 context

Which is cheaper, GPT-4o or GPT-5?

GPT-5 is cheaper at $3.44/1M tokens via OpenAI, compared to GPT-4o at $4.38/1M via Replicate. 4 providers offer both models.

Model Specifications

Spec	GPT-4o	GPT-5
Type	chat	chat
Parameters	—	—
Context Window	128K	272K
Arena ELO	1286	1380
Quality Tier	Frontier	Frontier
Open Weight	No	No
Cheapest Price	$4.38/1M	$3.44/1M
Cheapest Provider	Replicate	OpenAI
Providers	4	4

Price Comparison by Provider

4 providers

Provider	GPT-4o Input/1M	GPT-4o Output/1M	GPT-5 Input/1M	GPT-5 Output/1M
Azure OpenAI	$2.75	$11.00	$1.25	$10.00
OpenAI	$2.50	$10.00	$1.25	$10.00
OpenRouter	$7.20	$21.60	$1.50	$12.00
Replicate	$2.50	$10.00	$1.25	$10.00

Prices in USD per 1M tokens. Green highlights the cheaper model at each provider. Updated every 6 hours.

GPT-4o pricing details GPT-5 pricing details Custom comparison

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Frequently Asked Questions

GPT-5 is cheaper at $3.44/1M tokens (via OpenAI) compared to GPT-4o at $4.38/1M tokens (via Replicate). Prices vary by provider — Sector HQ tracks them all.

Prices in USD per 1M tokens. Updated every 6 hours.