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Find the right model, side by side.

Updated: Data as of:
First model
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Model specifications

Specifications for Gemini 3.8 Flash and GPT-6 Astra. Prices and performance use the selected provider offering.
SpecificationsGemini 3.8 FlashGoogleGPT-6 AstraOpenAI
Provider
Context sizetokens1,000,0001,000,000
Cutoff dateNot reported2026-04-30
Input costUSD / 1M tokens$0.75$10.00
Output costUSD / 1M tokens$3.75$50.00
Max outputtokens65,536128,000
LatencyTTFT · seconds27.1365.127
Speedtokens / sec136.64470.564

Benchmark performance

18 shared benchmark comparisons. Versions and setups matched.

Gemini 3.8 FlashGPT-6 Astra

GDPval-AA

2.1 ↗
  1. Gemini 3.8 Flash: 1,445.43 Elo
  2. GPT-6 Astra: 1,583.69 Elo