Tier: fast
Context: 1.0M
Cheapest Host: OpenAI Direct
Deprecation Alert: 2026-10-23
GPT-4.1 Nano (Ultra-Fast Router) API Pricing Calculator & Cheapest Provider
Live unit economics and multi-provider host arbitrage for GPT-4.1 Nano (Ultra-Fast Router) (openai/gpt-4.1-nano).
Input tokens cost $0.10/1M, output tokens cost
$0.40/1M, and prompt cache reads drop to
$0.025/1M.
Input / Output / Cache Read
$0.10 / $0.40
Per 1M tokens · Cache Read: $0.025/1M
10,000 DAU Monthly Bill
$2,412/mo
Drops to $1,703/mo at 75% prompt cache hit rate
Speed & Context Spec
210 tok/s
Context: 1,047,576 · Max Out: 32,768
1. Multi-Provider Host Arbitrage Table for GPT-4.1 Nano (Ultra-Fast Router)
Compare every verified inference provider hosting GPT-4.1 Nano (Ultra-Fast Router) by input price, output price, cache read discount, and throughput speed:
| Provider / Endpoint | Input / 1M | Output / 1M | Cache Read / 1M | Throughput | 10K DAU Monthly Bill | Action |
|---|---|---|---|---|---|---|
| OpenAI Direct Lowest Price | $0.10 | $0.40 | $0.025 | 210 tok/s | $2,412/mo | Deploy (Route with 0% Markup Fallback) → |
| OpenRouter | $0.10 | $0.40 | $0.025 | 205 tok/s | $2,412/mo | Deploy (Unified API for 470+ Models) → |
2. Monthly SaaS Spend by DAU Scale & Prompt Cache Hit Rate
Exact monthly spend projections across 1,000 DAU, 10,000 DAU, and 50,000 DAU with 0%, 50%, 75%, and 90% prompt caching:
| Active Users (DAU) | Uncached (0% Hit) | 50% Cache Hit | 75% Cache Hit (RAG) | 90% Cache Hit (Agents) |
|---|---|---|---|---|
| 1,000 DAU (1.55B tok/mo) | $241.20/mo | $193.95/mo | $170.33/mo | $156.15/mo |
| 10,000 DAU (15.5B tok/mo) | $2,412/mo | $1,940/mo | $1,703/mo | $1,562/mo |
| 50,000 DAU (77.4B tok/mo) | $12,060/mo | $9,698/mo | $8,516/mo | $7,808/mo |
3. Frequently Asked Questions (GPT-4.1 Nano (Ultra-Fast Router))
How much does the GPT-4.1 Nano (Ultra-Fast Router) API cost per 1M tokens?
GPT-4.1 Nano (Ultra-Fast Router) (OpenAI) costs $0.10 per 1M input tokens, $0.40 per 1M output tokens, and $0.025 per 1M cached input tokens. Its context window is 1.0M (1,047,576 tokens) with 32,768 max output tokens.
What is the cheapest inference provider for GPT-4.1 Nano (Ultra-Fast Router)?
Among 2 verified endpoints, OpenAI Direct offers the lowest blended pricing at $0.10/1M input and $0.40/1M output (210 tok/s). For maximum throughput, OpenAI Direct delivers 210 tokens/sec.
How much does GPT-4.1 Nano (Ultra-Fast Router) cost per month at 1,000, 10,000, and 50,000 DAU?
On a standard SaaS production workload (12 requests/user/day, 3,500 input + 800 output tokens), GPT-4.1 Nano (Ultra-Fast Router) costs $241.20/month at 1,000 DAU, $2,412/month at 10,000 DAU, and $12,060/month at 50,000 DAU. Enabling 75% prompt caching reduces the 10,000 DAU bill to $1,703/month.
4. Compare GPT-4.1 Nano (Ultra-Fast Router) Against Alternative Models
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