# GPT-3.5 Turbo 16k API prices

GPT-3.5 Turbo 16k (gpt) — 16k context, 4k max output.
2 metered per-token offers from 2 provider(s), in USD per 1M tokens.
Prices as of 2026-10-04.

| Provider | Input $/1M | Output $/1M | Cache read $/1M | Context |
| --- | --- | --- | --- | --- |
| Kilo Gateway | $3 | $4 | — | 16k |
| OpenRouter | $3 | $4 | — | 16k |

## Summary

- Cheapest input: $3 per 1M tokens (Kilo Gateway)
- Cheapest output: $4 per 1M tokens (Kilo Gateway)
- First-party: not listed separately
- Free offers: none
- Subscription plans (not per-token): none
- Released: 2023-08-28
- Inputs: pdf, text

## FAQ

### What is the cheapest GPT-3.5 Turbo 16k API?

As of Oct 4, 2026, Kilo Gateway has the lowest GPT-3.5 Turbo 16k output price at $4 per 1M tokens, and Kilo Gateway has the lowest input price at $3 per 1M tokens. Prices are metered per-token rates in USD; free tiers and subscription plans are excluded.

### How many providers offer GPT-3.5 Turbo 16k?

2 providers list GPT-3.5 Turbo 16k on Sovyron; 2 of them sell it at a metered per-token price.

### Is GPT-3.5 Turbo 16k free?

No provider in the Sovyron catalog lists a free tier for GPT-3.5 Turbo 16k.

### What is the context window of GPT-3.5 Turbo 16k?

GPT-3.5 Turbo 16k supports a 16k-token context window and up to 4k output tokens.

HTML page: https://sovyron.com/models/gpt-3-5-turbo-16k/
Full dataset: https://sovyron.com/data/catalog.json