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codexClear
Auto-research with codex: How I achieved a 232x Faster Kernel over baseline with Codex in GPU Mode's qr_v2 problem
codexgpu-computingcode-generationdeveloper-tools
Research

Auto-research with codex: How I achieved a 232x Faster Kernel

Codex was utilized to achieve a 232x faster kernel for the qr_v2 problem in GPU mode. The implementation involved optimizing the blocked Householder algorithm and introducing idea diversity to enhance performance.

sankalp.bearblog.dev

🔥🔥🔥🔥🔥

26 min

8/15/2026

GPT-5.5 Codex reasoning-token clustering may be leading to degraded performance

GPT-5.5 Codex exhibits a pattern where reasoning output tokens cluster at 516, 1034, and 1552. This clustering may correlate with degraded performance on complex tasks.

github.com

🔥🔥🔥🔥🔥

3 min

7/5/2026

Auto-research with codex: How I achieved a 232x Faster Kernel

Codex was utilized to achieve a 232x faster kernel for the qr_v2 problem in GPU mode. The implementation involved optimizing the blocked Householder algorithm and introducing idea diversity to enhance performance.

sankalp.bearblog.dev

🔥🔥🔥🔥🔥

26 min

8/15/2026

GPT-5.5 Codex reasoning-token clustering may be leading to degraded performance

GPT-5.5 Codex exhibits a pattern where reasoning output tokens cluster at 516, 1034, and 1552. This clustering may correlate with degraded performance on complex tasks.

github.com

🔥🔥🔥🔥🔥

3 min

7/5/2026

Auto-research with codex: How I achieved a 232x Faster Kernel

Codex was utilized to achieve a 232x faster kernel for the qr_v2 problem in GPU mode. The implementation involved optimizing the blocked Householder algorithm and introducing idea diversity to enhance performance.

sankalp.bearblog.dev

🔥🔥🔥🔥🔥

26 min

8/15/2026

GPT-5.5 Codex reasoning-token clustering may be leading to degraded performance

GPT-5.5 Codex exhibits a pattern where reasoning output tokens cluster at 516, 1034, and 1552. This clustering may correlate with degraded performance on complex tasks.

github.com

🔥🔥🔥🔥🔥

3 min

7/5/2026

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