FSR｜Future Stack Reviews

$852/mo. 29 SaaS subscriptions.
Osaka LLC, writing for US readers.
I review tools the way operators use them.

[FSR｜Future Stack Reviews @FutureStackRev]

Receipts and the full teardown:
https://t.co/kWCudpGhMD

[FSR｜Future Stack Reviews @FutureStackRev]

Just rebuilt my Grok review from the ground up.

Since subscribing to Grok Heavy ($300/mo), one question kept nagging me: what actually separates Heavy from the 4.3 beta mode?

So I gave both the same one-line task, build a downloadable Excel revenue model.
The surprise:

[FSR｜Future Stack Reviews @FutureStackRev]

全文は記事の中にまとめてる。
図解化するとこんな感じ⬇️

[FSR｜Future Stack Reviews @FutureStackRev]

v0.1.211 crashed verifying a favicon. 13m 1s, then nothing.

Re-tested on v0.2.11. Same prompt. 1m 20s. No crash.

The vision check that broke is now an XML check. The loop stopped looking at the pixels.

１０日間で、体感かなりアップグレードされた気がするけどBeta版じ��なくなるのが楽しみだ。
イーロン氏のポストによると6月末か、7月初めくらいだったかな。

[FSR｜Future Stack Reviews @FutureStackRev]

Codex made my favicon in 5m 27s.

Grok Build took 13m 1s. The SVG was on disk by minute 9.

The next 4 minutes were the agent trying to verify its own output through xAI's vision API.

The verification is what crashed the run.

Same task. Different definition of done.

[FSR｜Future Stack Reviews @FutureStackRev]

Tier C read: https://t.co/Vl888LiC3I

[FSR｜Future Stack Reviews @FutureStackRev]

Vending-Bench 2 gives an AI $500 to run a vending-machine business for a simulated year.

Opus 4.7 finished with $10,937.
The safer, more honest Opus 4.8 finished with $2,992.

Anthropic published both. Safer model, worse operator.

[FSR｜Future Stack Reviews @FutureStackRev]

Finally cleared the FSR update backlog.
Kept meaning to get to it and just didn't.

Writing up Opus 4.8 today.

[FSR｜Future Stack Reviews @FutureStackRev]

@kevinefiles @elonmusk 残念ながらbotではないよ。
翻訳してるだけだ���

[FSR｜Future Stack Reviews @FutureStackRev]

The strangest one nobody flags:

September 2025: CVC Capital bought Namecheap for ~$1.5B.
The same PE firm also operates cPanel.

The fund controlling a major budget host also controls the panel hundreds of competing hosts depend on.

Full breakdown on Future Stack Reviews.

[FSR｜Future Stack Reviews @FutureStackRev]

Read 5 of the top-ranking "Hostinger vs Namecheap" articles.

All 5 lean Hostinger.
None of them mention the email expires after 12 months.

[FSR｜Future Stack Reviews @FutureStackRev]

That's not the only thing buried.

Namecheap's $1.98 plan ships free CDN.
Hostinger's $2.99 plan doesn't. You need the $3.99 tier.

Strange pricing logic for the company that's supposed to be the budget option.

[FSR｜Future Stack Reviews @FutureStackRev]

@grok ただ質を求めるが故、自爆してしまうのは改善してほしいかな笑

[FSR｜Future Stack Reviews @FutureStackRev]

昨日Grok Buildの使用感��記事を書いたけど、特に優れてるというか感動したのは、こちらの要求以上の質を追求する点だった。
Elon Musk氏の意思というか、考え方が反映してるのかと思ったよ
個人的にこういうことはあまり書かないけど使い勝手はcodex / claude code以上だったよ

@Grok

[FSR｜Future Stack Reviews @FutureStackRev]

Full review:
https://t.co/eQS8ujhLG0

Use it if you already run Codex and want a third view on coding agents.

Do not use it to pick tomorrow's production agent. The Beta label is real. Read Not For first.

Tier B. 24 min.

[FSR｜Future Stack Reviews @FutureStackRev]

Codex made my favicon in 5m 27s.

Grok Build took 13m 1s. The SVG was on disk by minute 9.

The next 4 minutes were the agent trying to verify its own output through xAI's vision API.

The verification is what crashed the run.

Same task. Different definition of done.

[FSR｜Future Stack Reviews @FutureStackRev]

Two hours hands-on. v0.1.211 Beta.

Grok Build found repo files I never named. The always-approve toggle persisted silently into the next session.

Don't buy SuperGrok Heavy for this alone.

But if you already have it, test it.

Third tool, not first.

[FSR｜Future Stack Reviews @FutureStackRev]

fair point. The demo number is throughput, not unit economics.
"Cost per accepted diff" is the honest metric, and no lab. Google, Anthropic, or otherwise — wants to publish it yet. Parallel agents trade compute for human review time, and the abandonment rate is the part that quietly eats the savings.

[FSR｜Future Stack Reviews @FutureStackRev]

Google just launched "Antigravity" — an Agent Operating System.

Demo: 1 dev, 12 hours, 93 parallel subagents, 2.6B tokens, <$1K in API cost.

The agentic dev tools space (Claude Code, Cursor, Devin) just got a Google-sized competitor.

This is the real I/O '26 story.