GPT-5
ZenMux
GPT-5 by ZenMux costs $1.25 per 1M input tokens and $10.00 per 1M output tokens, with a 400K-token context window.
Pricing
Input (per 1M tokens)
$1.25
Output (per 1M tokens)
$10.00
Cached input (per 1M)
$0.13
Specifications
- Provider
- ZenMux
- Context window
- 400K tokens
- Parameters
- —
- Released
- Aug 2025
- Open weights
- No
- Frontier model
- No
Compare GPT-5 with…
FAQ
How much does GPT-5 cost?
GPT-5 is priced at $1.25 per 1M input tokens and $10.00 per 1M output tokens. Output tokens cost more than input.
What is GPT-5's context window?
GPT-5 supports a context window of 400K tokens — the maximum prompt plus response length it can handle in a single request.
Is GPT-5 open weight?
No — GPT-5 is a closed/proprietary model accessed via API.
Data as of 2026-10-30. Source: models.dev (open). Pricing is per 1M tokens (USD); confirm with the provider before production use.