Above the Fog

OpenAI Codex vs DeepSeek Harness

OpenAI Codex and DeepSeek Harness side by side on Above the Fog’s AI hype radar, on Oct 29, 2026: OpenAI Codex is 💤 Quiet with a hype score of 8 and DeepSeek Harness is 💤 Quiet with 23. The radar’s curated relations list them as competitors.

Data note: 7 of the last 14 days were not collected live. No collection ran on Oct 22–Oct 28, or a later run refilled those days at once. Every hype score is measured against the 14 days before it and those days are thin, so the scores, the stages and the week-over-week theme trends may read higher than they are until they leave that window on Nov 12.

At a glance

MeasureOpenAI CodexDeepSeek Harness
Stage💤 Quiet💤 Quiet
Hype score7.723.1
7-day change+3.6+2.6
In hype sincenot in hype nownot in hype now
Peak, 30 days27.7 on Sep 30, 202631.7 on Oct 20, 2026
Stories in 7 days41625
Share of voice, 7 days3.1%0.2%
Sources above normal0 of 202 of 18
Category🤖 Agents🤖 Agents

Hype score, last 30 days

Both hype scores by day, newest first; on the page’s chart, OpenAI Codex is the solid line and DeepSeek Harness the dashed one.

DayOpenAI CodexDeepSeek Harness
Oct 29, 20267.723.1
Oct 28, 2026211.6
Oct 27, 20262.29.9
Oct 26, 20261.69.5
Oct 25, 202602
Oct 24, 202609.8
Oct 23, 20264.39.8
Oct 22, 20264.120.5
Oct 21, 20266.410
Oct 20, 20264.131.7
Oct 19, 20262.619
Oct 18, 202612.617.2
Oct 17, 20261.524.8
Oct 16, 20264.512.1
Oct 15, 202620.53.9
Oct 14, 202619.66.1
Oct 13, 202615.812.7
Oct 12, 202615.33
Oct 11, 202601.1
Oct 10, 20264.44.1
Oct 9, 202614.911.2
Oct 8, 202621.73.7
Oct 7, 202615.50
Oct 6, 2026170
Oct 5, 20263.40.5
Oct 4, 202601.1
Oct 3, 20261.91.4
Oct 2, 202612.222.4
Oct 1, 202660
Sep 30, 202627.73.5

Shared themes

What the stories of both topics in the last 7 days are about, as classified by the Jev model (a story can carry several themes):

OpenAI Codex: stories behind it

  1. I built a fairly complex PCB using GPT/Codex, got it manufactured, and it actually works. — Reddit (r/codex) · Oct 28 · score 192 · 38 comments
  2. What’s the point of Codex doing usage resets every two days? Is it prep for them cutting usage by 50% at the end of this week? — Reddit (r/vibecoding) · Oct 28 · score 26 · 18 comments
  3. I Built an App with Codex That Runs MiniMax-H3 Entirely on a Smartphone — Generating 5-Second Videos Locally in Just 7 Minutes — Reddit (r/codex) · Oct 28 · score 16 · 14 comments
  4. Show HN: CleanCode – Claude Code and Codex collaborating on one canvas — Hacker News (github.com) · Oct 27 · score 4 · 6 comments
  5. AI review optimized for recall (catches more defects than Codex or Claude) — Hacker News (github.com) · Oct 27 · score 5 · 5 comments

DeepSeek Harness: stories behind it

  1. DeepSeek V5 spotted in DeepSeek Harness tests — are we getting closer to a release? — Reddit (r/DeepSeek) · Oct 28 · score 436 · 26 comments
  2. deepseek-harness: Opensource AI Agent Harness [264k Stars] — Reddit (r/DeepSeek) · Oct 28 · score 1 · 0 comments
  3. DeepSeek Harness is breaking Unity Projects — Reddit (r/DeepSeek) · Oct 30
  4. I Tested deepseek-harness — Here's What You Need to Know — DEV Community (dev.to) (#ai) · Oct 29 · score 0 · 0 comments
  5. I Tried deepseek-harness — Here's What You Need to Know — DEV Community (dev.to) (#ai) · Oct 29 · score 0 · 0 comments

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