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Find the right model, side by side.

Updated: Data as of:
First model
Second model

Model specifications

Specifications for Gemini 4 Carbon and GPT-6 Astra. Prices and performance use the selected provider offering.
SpecificationsGemini 4 CarbonGoogleGPT-6 AstraOpenAI
Provider
Context sizetokens1,000,0001,000,000
Cutoff dateNot reported2026-04-30
Input costUSD / 1M tokens$4.00$10.00
Output costUSD / 1M tokens$20.00$50.00
Max outputtokensNot reported128,000
LatencyTTFT · seconds156.309365.127
Speedtokens / sec94.62570.564

Benchmark performance

7 shared benchmark comparisons. Versions and setups matched.

Gemini 4 CarbonGPT-6 Astra

GDPval-AA

2.1 ↗
  1. Gemini 4 Carbon: 1,732.68 Elo
  2. GPT-6 Astra: 1,583.69 Elo