
Claude Code
aider
Cursor
Ghostty
opencode
GitHub Copilot
Zed
Frontier reasoning in the terminal

Speedtest.net
Testmy.net
Speed Test by Cloudflare
SpeedOf.Me
LibreSpeed
nPerf
OpenSpeedTest
Quickly test your internet speed with this fast-loading speed test powered by Netflix.

Which is more popular?
Based on our record, Fast.com seems to be a lot more popular than OpenAI Codex CLI. While we know about 1688 links to Fast.com, we've tracked only 41 mentions of OpenAI Codex CLI.
Website, pricing, platforms and company facts side by side.
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| Website | github.com | fast.com |
| Company | — | Startup from the United States |
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What each product offers, as listed by its team.


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An editorial look at what each product does well and who it suits.


Overall verdict
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Recommended for
Overall verdict
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OpenAI Codex CLI
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Speedtest.net vs Fast.com | why different results ?
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How often each product is chosen within a category, 0–100% relative to the other.


Share your experience with using OpenAI Codex CLI and Fast.com. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.


Codex takes the opposite bet: one product across six surfaces. CLI, IDE extension, Codex Cloud, the ChatGPT app sidebar, mobile (GA May 2026), and a Chrome extension. All of them share your ChatGPT account, your session history, and your... - Source: dev.to / 2 days ago
The second CLI (Codex) records tokens and quota in session files, but the laptop sleeps and moves, so Prometheus can't reliably scrape it. That's exactly the Pushgateway case: a systemd user timer parses the session files every 5 minutes... - Source: dev.to / 28 days ago
Since when? https://learn.chatgpt.com/docs/codex/cli https://github.com/openai/codex Looks like it's still a more-or-less-open-source product called Codex CLI. FWIW, there have been issues with various versions of ChatGPT not knowing... - Source: Hacker News / about 2 months ago
That is exactly how fast.com works for internet speed tests. You open it, it runs, you see a number. Done. - Source: dev.to / 4 months ago
Pro tip: Run a speed test immediately before the event. Don't trust your "up to 100 Mbps" ISP claim. Use fast.com or speedtest.net to get real numbers. - Source: dev.to / 7 months ago
Speedtest has always seemed incredibly sketchy to me, I don’t know if others share this sentiment. https://fast.com completed the test faster than speedtest loads the site. - Source: Hacker News / 7 months ago
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speed.cloudflare.com is a tool that allows you to measure the speed and consistency of your connection to the Internet. You can use it to verify that the speed your ISP promised you is the speed you are getting.
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