Compact GPT model for low-latency assistance and high-volume workloads
GPT-3.5 Turbo Instruct by openai is offered by 5 providers on this page. Its reference price is $1.50 per 1M input tokens and $2.00 per 1M output tokens.
The context window is 4,095 tokens at the reference host, but hosts report different limits, from 3,500 to 4,096, so the usable window depends on the provider you pick. It supports structured output. Accepted input modalities are Text, Image, and PDF. Providers report the capability flags inconsistently, so verify a specific feature against the host you plan to use. Its training knowledge cuts off at 2021-08.
| Provider | Tier | Input | Output | Cache read | Cache write | Context | Output limit | Status |
|---|---|---|---|---|---|---|---|---|
| Poe | Gateway | $1.40 | $1.80 | — | — | 3,500 ⚠ | 1,024 | |
| OpenRouter | Gateway | $1.50 | $2.00 | — | — | 4,095 | 3,685 | |
| Azure | Cloud | $1.50 | $2.00 | — | — | 4,096 ⚠ | 4,096 | deprecated |
| Azure Cognitive Services | Cloud | $1.50 | $2.00 | — | — | 4,096 ⚠ | 4,096 | deprecated |
| Kilo Gateway | Gateway | $1.50 | $2.00 | — | — | 4,095 | 3,685 |
Sorted by blended price (input×0.75 + output×0.25) asc. The official channel always shows regardless of rank. Whether a gateway's low price is actually usable can't be verified.