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GPT-4o Mini Saves 84%
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Claude 3.5 Haiku vs GPT-4o Mini API Cost Calculator
Side-by-side FinOps unit economics audit comparing Claude 3.5 Haiku (Anthropic) against GPT-4o Mini (OpenAI). Switching or hybrid-routing 80% of traffic to GPT-4o Mini cuts blended token spend by 84% and saves $17,982/mo ($215,784/yr) at 10,000 DAU.
Cost Efficiency Winner
GPT-4o Mini
$0.262/1M blended tokens (84% lower than Claude 3.5 Haiku at $1.60/1M)
10,000 DAU Monthly Delta
$17,982/mo
Saves $215,784/year on 12.6B input + 2.88B output tokens/mo
Throughput & Latency Winner
GPT-4o Mini
148 tok/s streaming speed (210ms TTFT)
1. Side-by-Side Token Pricing, Context Window & Speed Matrix
Exact API pricing per 1 Million tokens (Input, Output, and Prompt Cache Read), maximum context window, and real-world streaming throughput.
| FinOps Metric | Claude 3.5 Haiku (Anthropic) | GPT-4o Mini (OpenAI) | Arbitrage Advantage |
|---|---|---|---|
| Input Price (per 1M tokens) | $0.80 / 1M | $0.15 / 1M | GPT-4o Mini (5.3x cheaper) |
| Output Price (per 1M tokens) | $4.00 / 1M | $0.60 / 1M | GPT-4o Mini (6.7x cheaper) |
| Cached Input Read (per 1M) | $0.08 / 1M | $0.075 / 1M | Prompt Cache Hit Discount Ready |
| Blended 3:1 RAG Rate (per 1M) | $1.60 / 1M | $0.262 / 1M | 84% savings with GPT-4o Mini |
| Context Window / Max Output | 200K (200,000) / 8K out | 128K (128,000) / 16K out | Claude 3.5 Haiku larger context |
| Streaming Speed & TTFT | 135 tok/s (240ms TTFT) | 148 tok/s (210ms TTFT) | GPT-4o Mini faster generation |
| Capabilities (Tools / Vision / Cache) | Tools: Yes · Vision: Yes · Cache: Yes | Tools: Yes · Vision: Yes · Cache: Yes | JSON Mode: Both Supported |
2. Monthly SaaS Cloud Bill Simulation (1,000 DAU / 10,000 DAU / 50,000 DAU)
Simulated monthly API spend for a production AI SaaS application (12 requests per active user/day, 3,500 input tokens + 800 output tokens per turn, 30 days/month).
| SaaS Scale Tier | Monthly Token Volume | Claude 3.5 Haiku Monthly Bill | GPT-4o Mini Monthly Bill | Monthly Savings (GPT-4o Mini) |
|---|---|---|---|---|
| 1,000 DAU (Seed / MVP) | 1.26B in / 288M out | $2,160/mo | $361.80/mo | Save $1,798/mo |
| 10,000 DAU (Growth SaaS) | 12.6B in / 2.88B out | $21,600/mo | $3,618/mo | Save $17,982/mo ($215,784/yr) |
| 50,000 DAU (Enterprise Scale) | 63.0B in / 14.4B out | $108,000/mo | $18,090/mo | Save $89,910/mo |
3. Prompt Caching Savings Math (At 10,000 DAU Workload)
Long system prompts, RAG document context, and multi-turn agent histories qualify for automatic or explicit prompt caching. Here is how cache hit rates change your monthly cloud bill:
| Prompt Cache Hit Rate | Claude 3.5 Haiku (Read @ $0.08/1M) | GPT-4o Mini (Read @ $0.075/1M) | Combined Hybrid Router + 75% Cache |
|---|---|---|---|
| 0% Cache Hit (Cold Prompts) | $21,600/mo | $3,618/mo | $7,214/mo |
| 50% Cache Hit (Standard Chat) | $17,064/mo | $3,146/mo | $5,929/mo |
| 75% Cache Hit (Production Agent/RAG) | $14,796/mo | $2,909/mo | $5,287/mo |
| 90% Cache Hit (Heavy Document Context) | $13,435/mo | $2,768/mo | $4,901/mo |
4. Multi-Provider Host Arbitrage Table
Don't overpay default gateway markups. Compare verified inference hosts for both Claude 3.5 Haiku and GPT-4o Mini sorted by lowest blended cost:
| Model | Inference Host / Gateway | Input / 1M | Output / 1M | Cache Read / 1M | Speed | Deploy / Credits Link |
|---|---|---|---|---|---|---|
| GPT-4o Mini | OpenAI Direct Cheapest Host | $0.15 | $0.60 | $0.075 | 148 tok/s | Deploy (Route with 0% Markup Fallback) → |
| GPT-4o Mini | OpenRouter | $0.15 | $0.60 | $0.075 | 144 tok/s | Deploy (Unified API for 470+ Models) → |
| Claude 3.5 Haiku | Anthropic Direct | $0.80 | $4.00 | $0.08 | 135 tok/s | Deploy (Prompt Caching Ready) → |
| Claude 3.5 Haiku | OpenRouter | $0.80 | $4.00 | $0.08 | 132 tok/s | Deploy (Unified API for 470+ Models) → |
5. Frequently Asked Questions (Claude 3.5 Haiku vs GPT-4o Mini)
Is Claude 3.5 Haiku or GPT-4o Mini cheaper per 1M tokens in production?
GPT-4o Mini is 84% cheaper on a blended 3:1 input-to-output production workload ($0.262/1M blended vs $1.60/1M for Claude 3.5 Haiku). Claude 3.5 Haiku charges $0.80/1M input and $4.00/1M output, while GPT-4o Mini charges $0.15/1M input and $0.60/1M output.
How much does Claude 3.5 Haiku vs GPT-4o Mini cost at 10,000 Daily Active Users (DAU)?
At 10,000 DAU (360,000 requests/day at 3,500 input + 800 output tokens), Claude 3.5 Haiku costs $21,600/month uncached ($14,796/mo with 75% prompt cache hits), whereas GPT-4o Mini costs $3,618/month uncached ($2,909/mo with 75% prompt cache hits). Routing to GPT-4o Mini saves $17,982/month ($215,784/year).
How much does Prompt Caching save on Claude 3.5 Haiku vs GPT-4o Mini?
Claude 3.5 Haiku offers cached input reads at $0.08/1M tokens, while GPT-4o Mini offers cached reads at $0.075/1M tokens. At a 75% system-prompt/RAG cache hit rate, Claude 3.5 Haiku monthly spend drops from $21,600 to $14,796, and GPT-4o Mini drops from $3,618 to $2,909.
Which model has faster token generation speed and larger context: Claude 3.5 Haiku or GPT-4o Mini?
GPT-4o Mini delivers higher throughput at 148 tokens/sec (TTFT 210ms) compared to 135 tokens/sec. For context window, Claude 3.5 Haiku supports 200K tokens (200,000) while GPT-4o Mini supports 128K tokens (128,000).
6. Related FinOps Comparisons & Model Calculators
Claude 3.5 Haiku Pricing Calculator
Full host arbitrage & DAU cost breakdown →
GPT-4o Mini Pricing Calculator
Full host arbitrage & DAU cost breakdown →
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