AI Model Comparison
GPT-5.5 pro vs Grok 4.20 Reasoning
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
1.1Mtokens
Max output
128Ktokens
Input price
$30.00/ 1M tokens
Output price
$180.00/ 1M tokens
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
Key info
What each model gives you per call. Prices reflect the cheapest available route on Opper.
Input
Output
Features
Context window
1.1Mtokens
2Mtokens
Max output
128Ktokens
30Ktokens
Input price
$30.00/ 1M tokens
$2.00/ 1M tokens
Output price
$180.00/ 1M tokens
$6.00/ 1M tokens
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
xAI
RegionEU
ZDREnterprise
TrainingNo
Google Cloud
RegionMulti
ZDREnterprise
TrainingNo
xAI
RegionUS
ZDREnterprise
TrainingNo