GPT-3.5 Turbo Instruct
OpenAI · Mid
This model is a variant of GPT-3.5 Turbo tuned for instructional prompts and omitting chat-related optimizations. Training data: up to Sep 2021.
Input / 1M
$1.50
Output / 1M
$2.00
Cached input / 1M
—
Context window
4K
Where it sits
200th-cheapest mid model
by blended $/Mtok among 262 listed mid models
184% above the mid median
blended $/Mtok across 262 mid models
Output costs 1.3× input
$1.50 in / $2.00 out per 1M
Held flat since launch (Jun 2026)
no blended price change recorded
Computed live from current prices and this model's history — not hand-written, so it stays accurate as prices move.
Price history
Only one price on record so far — the history chart appears once a price changes.
Snapshots
| Effective | Input | Output | Cached in | Note | Source |
|---|---|---|---|---|---|
| 11 Jun 2026 | $1.50 | $2.00 | — | Imported from OpenRouter | openrouter.ai |