Compare AI models

Specifications
Context window
1M1.05M
API pricing
Input price
—$10.00
Output price
—$50.00
Cached input price
—$1.00
Cheapest input
$0.375Google$5.00OpenAI
Cheapest output
$1.875Google$25.00OpenAI
Benchmarks
CheatBench
75.2%47.4%
DeepSWE 1.1
71%74.1%
Next.js Evals
90%90%
Terminal-Bench 4.0
19.1%57.9%
ARC-AGI-2
89.2%95%
threejseval
15571867
Overview
CompanyGoogleOpenAI
Release dateSep 2 2026Sep 3 2026
AccessClosedClosed
Model detailsView modelView model

Frequently asked questions

GPT-6 Astra leads Gemini 3.8 Flash on 5 of the 6 benchmarks they both report. Only GPT-6 Astra has a verified first-party API price: $10.00 per million input tokens and $50.00 per million output tokens. No pay-as-you-go API rate is tracked for Gemini 3.8 Flash. Gemini 3.8 Flash shipped 1 days before GPT-6 Astra, so benchmark comparisons should account for the intervening progress.

Context windows are 1M (Gemini 3.8 Flash) vs 1.05M (GPT-6 Astra).

On CheatBench, GPT-6 Astra leads at 47.4% vs Gemini 3.8 Flash at 75.2%. On DeepSWE 1.1, GPT-6 Astra leads at 74.1% vs Gemini 3.8 Flash at 71%. On Next.js Evals, both models score 90%. On Terminal-Bench 4.0, GPT-6 Astra leads at 57.9% vs Gemini 3.8 Flash at 19.1%. On ARC-AGI-2, GPT-6 Astra leads at 95% vs Gemini 3.8 Flash at 89.2%. On threejseval, GPT-6 Astra leads at 1867 vs Gemini 3.8 Flash at 1557.