AI Model Comparison

O3 vs Gemini 3.5 Flash

Compare on pricing, benchmarks, zero data retention, EU hosting, providers, and context.

Key info

What each model gives you per call. Prices reflect the cheapest available route on Opper.

Input
Output
Features
Context window
200Ktokens
Max output
100Ktokens
Input price
$2.00/ 1M tokens
Output price
$8.00/ 1M tokens

Benchmarks

Composite indices and speed metrics from Artificial Analysis. Higher is better for indices and speed (averaged across providers); lower is better for time-to-first-token.

Intelligence Index
Coding Index
38
Math Index
88
Output speed
121 t/s
Time to first token
9.2s

Available routes & privacy

Every provider hosting this model on Opper. Routes are sorted best-privacy first — EU regions and self-serve ZDR rise to the top.

RoutesProvider, region, ZDR & training posture.
OpenAI
RegionUS
ZDREnterprise
TrainingNo

One API key, every model you compared

EU-hosted, zero data retention by default, pass-through pricing. Drop-in OpenAI SDK compatible — switch between models without changing your code.

O3 vs Gemini 3.5 Flash — compare AI models side by side | Opper AI