The board shows this model's cheapest measured offer ($1.75/1M); the smaller figure under it is the mean of the 6 offers listed below ($3.21/1M). Add those up and divide — it matches.
| Provider | Router / Source | $ in /1M | $ out /1M | TTFT | TPS | Uptime | Evidence |
|---|---|---|---|---|---|---|---|
| requesty | Requesty | $1.00 | $4.00 | — | — | — | API-measured |
| azure | Pricebook (LiteLLM) | $2.00 | $8.00 | — | — | — | Official list |
| openai | Pricebook (LiteLLM) | $2.00 | $8.00 | — | — | — | Official list |
| vercel_ai_gateway | Pricebook (LiteLLM) | $2.00 | $8.00 | — | — | — | Official list |
| openrouter-best | OpenRouter | $2.00 | $8.00 | — | — | — | API-measured |
| burncloud | burncloud | $2.00 | $8.00 | — | — | — | API-measured |
Price trend
Cheapest blended price, last 31 days (USD/1M): $3.5 → $3.5 → $3.5 → $3.5 → $3.5 → $3.5 → $3.5 → $3.5 → $3.5 → $3.5 → $1.75 → $1.75 → $1.75 → $1.75 → $1.75 → $1.75 → $1.75 → $1.75 → $1.75 → $1.75 → $1.75 → $1.75 → $1.75 → $1.75 → $1.75 → $1.75 → $1.75 → $1.75 → $1.75 → $1.75 → $1.75
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/o3.json. Free reuse requires attribution to tkx.org.
FAQ
How much does o3:flex cost?
Cheapest measured offer right now: $1/1M input, $4/1M output via requesty — across 6 tracked providers, refreshed hourly.
Who serves o3:flex?
6 providers currently serve it. The table above lists each with input/output price, TTFT, TPS, uptime and an evidence tier.
Is the price of o3:flex going up or down?
The daily candles above track the cheapest blended price ($/1M, 3:1 in:out). TKX snapshots every hour, so drops and hikes show up the same day they happen.