Models

gpt-3.5-turbo-instruct

vercel_ai_gateway · 8K ctx · 3 providers · updated 2026-10-01 22:16 UTC

Cheapest
$1.63 Official list · Vercel AI Gateway
Avg price
$1.63 /1M
providers
3
(3 × $1.50 + $2.00) ÷ 4 = $1.63/1M — the $/1M figure blends input and output at 3:1 — that is the only way models with two different rates can be ranked on one axis. Your actual rate depends on your own input:output mix — input only $1.50, 3:1 $1.63, 1:1 $1.75, output only $2.00 per 1M.

The board shows this model's cheapest measured offer ($1.63/1M); the smaller figure under it is the mean of the 3 offers listed below ($1.63/1M). Add those up and divide — it matches.

ProviderRouter / Source$ in /1M$ out /1MTTFTTPSUptimeEvidence
vercel_ai_gateway Pricebook (LiteLLM) ↗ $1.50$2.00 — — — Official list
openrouter Pricebook (LiteLLM) ↗ $1.50$2.00 — — — Official list
openrouter-best OpenRouter ↗ $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 vercel_ai_gateway — across 3 tracked providers, refreshed hourly.

Who serves gpt-3.5-turbo-instruct?

3 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.

Related analysis

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