GPT-5.5 API Pricing
Prices updated: ·18 providers
GPT-5.5 has 18 API providers. The lowest input price is $0.2069/1M tokens from TreeRouter. 18 providers auto-refresh every 6 h (Updated 6h ago).
The official baseline is $5.0000/1M input tokens, while the lowest relay quote is $0.2069 (TreeRouter) — 96% below official. Relay discounts come with different latency and SLA terms: latency-sensitive production traffic is safer on the official API, while batch and offline workloads benefit most from cheap relays.
GPT-5.5 supports a 1050K context window and image input. At today's lowest rate, processing 1M input + 1M output tokens costs about $1.4483. The table below lists current per-provider quotes.
Prices sourced from automated scrapers across 70+ platforms (daily refresh at 09:00 UTC) and manual verification from official pricing pages. Live data comes directly from provider APIs. See methodology
GPT-5.5 API Price History
Compare GPT-5.5 API Prices Across Providers
Frequently Asked Questions
How is GPT-5.5 API pricing calculated?
LLM APIs are billed per 1M input and output tokens separately. Official providers set the base price; relay providers typically offer 20–80% discounts.
What is the cheapest way to access GPT-5.5 API?
The lowest current input price is $0.2069 per 1M tokens from TreeRouter. Prices update in real time — bookmark this page for the latest rates.
Can I use GPT-5.5 API from China?
Providers marked 🇨🇳 in the table support China-mainland access. Check each provider's documentation for details.
How often is GPT-5.5 API pricing updated?
18 sources on this page are live-scraped every ~6 hours (Updated 6h ago).
How reliable is the GPT-5.5 API pricing data?
Live-scraped prices come directly from provider APIs and are generally accurate. Manually maintained prices are sourced from official pricing pages and periodically verified. For critical decisions, confirm the latest price via the provider's official link.
How can I tell if a price is live-scraped or manually maintained?
Each provider row shows a small label next to the name: a green "Live" badge means prices are automatically fetched on a schedule; a gray "Manual" badge means human-curated. Live data not refreshed in 24+ hours turns amber.
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