The board shows this model's cheapest measured offer ($1.63/1M); the smaller figure under it is the mean of the 2 offers listed below ($1.63/1M). Add those up and divide — it matches.
| Provider | Router / Source | $ in /1M | $ out /1M | TTFT | TPS | Uptime | Evidence |
|---|---|---|---|---|---|---|---|
| openrouter-best | OpenRouter | $1.50 | $2.00 | — | — | — | API-measured |
| burncloud | burncloud | $1.50 | $2.00 | — | — | — | API-measured |
Price trend
Cheapest blended price, last 31 days (USD/1M): $1.625 → $1.625 → $1.625 → $1.625 → $1.625 → $1.625 → $1.625 → $1.625 → $1.625 → $1.625 → $1.625 → $1.625 → $1.625 → $1.625 → $1.625 → $1.625 → $1.625 → $1.625 → $1.625 → $1.625 → $1.625 → $1.625 → $1.625 → $1.625 → $1.625 → $1.625 → $1.625 → $1.625 → $1.625 → $1.625 → $1.625
Data & method
Cheapest ranked by blended = (3×in + out) ÷ 4; performance columns show only when a source provides them, never estimated. “Official list” = LiteLLM open pricebook (MIT); “API-measured” = provider/aggregator public APIs. Machine-readable data: /api/v1/models/gpt-3.5-turbo-instruct.json. Free reuse requires attribution to tkx.org.
FAQ
How much does GPT-3.5 Turbo Instruct cost?
Cheapest measured offer right now: $1.5/1M input, $2/1M output via openrouter-best — across 2 tracked providers, refreshed hourly.
Who serves GPT-3.5 Turbo Instruct?
2 providers currently serve it. The table above lists each with input/output price, TTFT, TPS, uptime and an evidence tier.
Is the price of GPT-3.5 Turbo Instruct going up or down?
The daily candles above track the cheapest blended price ($/1M, 3:1 in:out). TKX snapshots every hour, so drops and hikes show up the same day they happen.