Frontier LLMs

GPT-6 Astra scores highest on GoBench

I created a new benchmark that measures general reasoning abilities by having LLMs play the game of Go. GPT-6 Astra max achieves 2568 Elo, compared to 1929 Elo with Sol max, and 2076 Elo with Opus 5 high. By enabling coding with no internet, Codex with Astra can achieve 3563 Elo, significantly better than Codex with Sol, which achieves 2656 Elo.

The AI Multiverse Editorial Desk•Wednesday, September 16, 2026•1 min read

Reported viaReddit OpenAI (ChatGPT, Codex & Leaks)

Reader:

Executive Brief & 3-Point Takeaways

I created a new benchmark that measures general reasoning abilities by having LLMs play the game of Go.

GPT-6 Astra max achieves 2568 Elo, compared to 1929 Elo with Sol max, and 2076 Elo with Opus 5 high.

By enabling coding with no internet, Codex with Astra can achieve 3563 Elo, significantly better than Codex with Sol, which achieves 2656 Elo.

Impact:

I created a new benchmark that measures general reasoning abilities by having LLMs play the game of Go.

Fact-checked against primary sourcesCategory: Frontier LLMs

Illustration: AI-generated

Key Findings & Takeaways

I created a new benchmark that measures general reasoning abilities by having LLMs play the game of Go.
GPT-6 Astra max achieves 2568 Elo, compared to 1929 Elo with Sol max, and 2076 Elo with Opus 5 high.
By enabling coding with no internet, Codex with Astra can achieve 3563 Elo, significantly better than Codex with Sol, which achieves 2656 Elo.

Why It Matters

I created a new benchmark that measures general reasoning abilities by having LLMs play the game of Go.

Overview

Why It Matters

I created a new benchmark that measures general reasoning abilities by having LLMs play the game of Go.

Key Details

leaderboard: https://rolandgao.com/blog/gobench/ submitted by /u/Roland31415 [link] [comments]

--- *Original report published by [Reddit OpenAI (ChatGPT, Codex & Leaks)](https://www.reddit.com/r/OpenAI/comments/1wi75t2/gpt6_astra_scores_highest_on_gobench/).*