Head-to-Head API Cost Benchmark

GPT-4o mini vs OpenAI o3-mini: API Price & Latency Comparison

On a standard B2B production workload (5,000 req/day), GPT-4o mini is 86.4% cheaper ($78.19/mo vs $573.38/mo), while GPT-4o mini leads in token generation speed (140 tok/s).

Side-by-Side Specification & Billing Matrix

Metric GPT-4o mini (OpenAI) OpenAI o3-mini (OpenAI) Advantage
Standard Input / 1M Tokens $0.150 $1.100 GPT-4o mini
Cached Input / 1M Tokens $0.075 $0.550 GPT-4o mini
Output Generation / 1M Tokens $0.60 $4.40 GPT-4o mini
Intelligence / Benchmark Quality 1224 LMSYS Elo 1305 LMSYS Elo OpenAI o3-mini
Monthly Spend (5k req/day, 50% cache) $78.19 / mo $573.38 / mo GPT-4o mini (-86.4%)
Context Window 128,000 tokens 200,000 tokens OpenAI o3-mini
Output Speed (Throughput) 140 tokens/sec 95 tokens/sec GPT-4o mini
Batch API Discount -50% (OpenAI) -50% (OpenAI) OpenAI
Primary Workload Fit High-volume classification, extraction, RAG summarization, low-cost chatbots Algorithmic code generation, math, STEM reasoning, automated QA agents Workload Dependent
Deploy / Console Access Try GPT-4o mini → Try OpenAI o3-mini → Open Full Simulator