[nearbuy]

Unless I'm missing it, the page they're referring to (https://openai.com/index/introducing-gpt-5-3-codex-spark/) never claims Spark is 15x faster.

It looks like it only appears in the snippet the Google result shows, presumably taken from the meta tags. It's possible an earlier draft claimed a 15x speed boost and they forgot to remove the claim from the tags.

[nvanlandschoot]

I think they modified the page. If you search for GPT-5.3-Codex-Spark, Google still has it indexed with 15x. Searching: GPT-5.3-Codex-Spark + "15x" will show all the downstream sites that picked up the claim.

[nearbuy]

The Google snippet isn't outdated. It's from the <meta> tag. It's still there, and it still says "Introducing GPT-5.3-Codex-Spark—our first real-time coding model. 15x faster generation, 128k context, now in research preview for ChatGPT Pro users."

I don't think the visible page text ever said 15x faster. It's possible they modified it before I saw it, but it's not in the oldest Internet Archive version either.

The other news sites that mention 15x faster are probably either getting it from the same <meta> tag that shows up in search snippets, or from the RSS feed. Both would be generated from the same source text in whatever platform they use to write their posts.