The board shows this model's cheapest measured offer ($1.72/1M); the smaller figure under it is the mean of the 7 offers listed below ($2.95/1M). Add those up and divide — it matches.
| Provider | Router / Source | $ in /1M | $ out /1M | TTFT | TPS | Uptime | Evidence |
|---|---|---|---|---|---|---|---|
| openrouter-best | OpenRouter ↗ | $0.625 | $5.00 | — | — | — | API-measured |
| requesty | Requesty ↗ | $0.625 | $5.00 | — | — | — | API-measured |
| azure | Pricebook (LiteLLM) ↗ | $1.25 | $10.00 | — | — | — | Official list |
| gmi | Pricebook (LiteLLM) ↗ | $1.25 | $10.00 | — | — | — | Official list |
| openai | Pricebook (LiteLLM) ↗ | $1.25 | $10.00 | — | — | — | Official list |
| replicate | Pricebook (LiteLLM) ↗ | $1.25 | $10.00 | — | — | — | Official list |
| burncloud | burncloud ↗ | $1.25 | $10.00 | — | — | — | API-measured |
Price trend
Cheapest blended price, last 31 days (USD/1M): $1.7188 → $1.7188 → $1.7188 → $1.7188 → $1.7188 → $1.7188 → $1.7188 → $1.7188 → $1.7188 → $1.7188 → $1.7188 → $1.7188 → $1.7188 → $1.7188 → $1.7188 → $1.7188 → $1.7188 → $1.7188 → $1.7188 → $1.7188 → $1.7188 → $1.7188 → $1.7188 → $1.7188 → $1.7188 → $1.7188 → $1.7188 → $1.7188 → $1.7188 → $1.7188 → $1.7188
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-5.json. Free reuse requires attribution to tkx.org.
About
GPT-5:Flex is a large language model served by multiple inference providers on AI model marketplaces, known for its capabilities in natural language processing tasks.
AI-generated summary from public information — is this yours?
FAQ
How much does GPT-5 (batch) cost?
Cheapest measured offer right now: $0.625/1M input, $5/1M output via openrouter-best — across 7 tracked providers, refreshed hourly.
Who serves GPT-5 (batch)?
7 providers currently serve it. The table above lists each with input/output price, TTFT, TPS, uptime and an evidence tier.
Is the price of GPT-5 (batch) going up or down?
The daily candles above track the cheapest blended price ($/1M, 3:1 in:out). TKX snapshots every hour, so drops and hikes show up the same day they happen.