Tier: fast
Context: 128K
Cheapest Host: OpenAI Direct
GPT-4o Mini API Pricing Calculator & Cheapest Provider
Live unit economics and multi-provider host arbitrage for GPT-4o Mini (openai/gpt-4o-mini).
Input tokens cost $0.15/1M, output tokens cost
$0.60/1M, and prompt cache reads drop to
$0.075/1M.
Input / Output / Cache Read
$0.15 / $0.60
Per 1M tokens · Cache Read: $0.075/1M
10,000 DAU Monthly Bill
$3,618/mo
Drops to $2,909/mo at 75% prompt cache hit rate
Speed & Context Spec
148 tok/s
Context: 128,000 · Max Out: 16,384
1. Multi-Provider Host Arbitrage Table for GPT-4o Mini
Compare every verified inference provider hosting GPT-4o Mini 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 | $0.15 | $0.60 | $0.075 | 148 tok/s | $3,618/mo | Deploy (Route with 0% Markup Fallback) → |
| OpenRouter | $0.15 | $0.60 | $0.075 | 144 tok/s | $3,618/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) | $361.80/mo | $314.55/mo | $290.92/mo | $276.75/mo |
| 10,000 DAU (15.5B tok/mo) | $3,618/mo | $3,146/mo | $2,909/mo | $2,768/mo |
| 50,000 DAU (77.4B tok/mo) | $18,090/mo | $15,728/mo | $14,546/mo | $13,838/mo |
3. Frequently Asked Questions (GPT-4o Mini)
How much does the GPT-4o Mini API cost per 1M tokens?
GPT-4o Mini (OpenAI) costs $0.15 per 1M input tokens, $0.60 per 1M output tokens, and $0.075 per 1M cached input tokens. Its context window is 128K (128,000 tokens) with 16,384 max output tokens.
What is the cheapest inference provider for GPT-4o Mini?
Among 2 verified endpoints, OpenAI Direct offers the lowest blended pricing at $0.15/1M input and $0.60/1M output (148 tok/s). For maximum throughput, OpenAI Direct delivers 148 tokens/sec.
How much does GPT-4o Mini 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-4o Mini costs $361.80/month at 1,000 DAU, $3,618/month at 10,000 DAU, and $18,090/month at 50,000 DAU. Enabling 75% prompt caching reduces the 10,000 DAU bill to $2,909/month.
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