Head-to-Head API Cost Benchmark

Gemini 2.0 Flash-Lite vs OpenAI o3-mini: API Price & Latency Comparison

On a standard B2B production workload (5,000 req/day), Gemini 2.0 Flash-Lite is 93.8% cheaper ($35.81/mo vs $573.38/mo), while Gemini 2.0 Flash-Lite leads in token generation speed (220 tok/s).

Side-by-Side Specification & Billing Matrix

Metric Gemini 2.0 Flash-Lite (Google Gemini API) OpenAI o3-mini (OpenAI) Advantage
Standard Input / 1M Tokens $0.075 $1.100 Gemini 2.0 Flash-Lite
Cached Input / 1M Tokens $0.020 $0.550 Gemini 2.0 Flash-Lite
Output Generation / 1M Tokens $0.30 $4.40 Gemini 2.0 Flash-Lite
Intelligence / Benchmark Quality 1210 LMSYS Elo 1305 LMSYS Elo OpenAI o3-mini
Monthly Spend (5k req/day, 50% cache) $35.81 / mo $573.38 / mo Gemini 2.0 Flash-Lite (-93.8%)
Context Window 1,000,000 tokens 200,000 tokens Gemini 2.0 Flash-Lite
Output Speed (Throughput) 220 tokens/sec 95 tokens/sec Gemini 2.0 Flash-Lite
Batch API Discount -50% (Google Gemini API) -50% (OpenAI) Google Gemini API
Primary Workload Fit Mass web scraping enrichment, classification at millions of rows per day Algorithmic code generation, math, STEM reasoning, automated QA agents Workload Dependent
Deploy / Console Access Try Gemini 2.0 Flash-Lite → Try OpenAI o3-mini → Open Full Simulator