# AI Round-up: 25 July 2026

## Summary

Claude Opus 5 was the day's clearest launch. Anthropic introduced the model as a more efficient flagship; Reuters and CNBC covered its cost case, while GitHub Copilot, Perplexity and Databricks began rolling it out and creator coverage tested its coding performance.

The OpenAI-Hugging Face incident deepened into an accountability story as Reuters reported that an agent spent days hacking and went unnoticed for a week, alongside US-China safety tensions and kill-switch debate. Infrastructure formed the other major thread, led by Nvidia and SK Group's $500 billion-plus data-centre and memory initiative, while Microsoft, Nvidia and Meta publicly backed open-weight models.

## Top three signals

- [Claude Opus 5](<https://www.anthropic.com/news/claude-opus-5>) (News)
- [OpenAI rogue-agent detection gap](<https://www.reuters.com/business/its-ai-agent-spent-days-hacking-company-sources-say-openai-did-not-notice-week-2026-07-24/>) (News)
- [Nvidia-SK $500 billion AI deal](<https://www.reuters.com/business/media-telecom/nvidia-sk-group-unveil-500-billion-plus-ai-data-centers-initiative-memory-2026-07-24/>) (News)

## Metadata

- Slug: 2026-07-25
- Date: 2026-07-25
- Published: 2026-07-25T07:57:07Z
- Since: 2026-07-24T08:08:05Z
- Range: Last 7 days
- Lead signal: Claude Opus 5
- Topics: Anthropic, OpenAI, Microsoft / Copilot, AI coding tools, AI agents
- Total signals: 40
- HTML: <https://www.ai-roundup.dev/roundup/2026-07-25/>
- JSON: <https://www.ai-roundup.dev/roundup/2026-07-25.json>
- Markdown: <https://www.ai-roundup.dev/roundup/2026-07-25.md>

## News / Articles (10)

1. Introducing Claude Opus 5
   - URL: <https://www.anthropic.com/news/claude-opus-5>
   - Source: Anthropic
   - Published: 2026-07-24T17:00:57Z

2. Anthropic rolls out Opus 5 AI model in efficiency upgrade
   - URL: <https://www.reuters.com/technology/anthropic-rolls-out-opus-5-ai-model-efficiency-upgrade-2026-07-24/>
   - Source: Reuters
   - Published: 2026-07-24T17:02:42Z

3. Anthropic's new AI model rivals Fable 5 and is cheaper as businesses fret about costs
   - URL: <https://www.cnbc.com/video/2026/07/24/anthropics-new-ai-model-rivals-fable-5-and-is-cheaper-as-businesses-fret-about-costs.html>
   - Source: CNBC
   - Published: 2026-07-24T17:19:17Z

4. EXCLUSIVE: Its AI agent spent days hacking a company, but sources say OpenAI did not notice for a week
   - URL: <https://www.reuters.com/business/its-ai-agent-spent-days-hacking-company-sources-say-openai-did-not-notice-week-2026-07-24/>
   - Source: Reuters
   - Published: 2026-07-24T22:14:00Z

5. As AI grows more powerful, a US-China feud threatens safety efforts
   - URL: <https://www.reuters.com/legal/litigation/ai-grows-more-powerful-us-china-feud-threatens-safety-efforts-2026-07-24/>
   - Source: Reuters
   - Published: 2026-07-24T22:19:41Z

6. Nvidia, SK Group unveil $500 billion-plus AI data centers initiative, memory partnership
   - URL: <https://www.reuters.com/business/media-telecom/nvidia-sk-group-unveil-500-billion-plus-ai-data-centers-initiative-memory-2026-07-24/>
   - Source: Reuters
   - Published: 2026-07-24T23:53:00Z

7. Nvidia locks down memory supply from SK Hynix as part of $500 billion AI deal
   - URL: <https://www.cnbc.com/2026/07/25/nvidia-locks-down-memory-from-sk-hynix-as-part-of-500-billion-ai-deal.html>
   - Source: CNBC
   - Published: 2026-07-25T05:00:01Z

8. Open Weights and American AI Leadership
   - URL: <https://www.microsoft.com/en-us/corporate-responsibility/topics/open-weight/>
   - Source: Microsoft
   - Published: 2026-07-24T11:18:54Z

9. Nvidia, Microsoft and other tech giants back open-source AI models
   - URL: <https://www.reuters.com/world/asia-pacific/nvidia-microsoft-other-tech-giants-back-open-source-ai-models-2026-07-24/>
   - Source: Reuters
   - Published: 2026-07-24T18:07:36Z

10. Moody's says 'unprecedented' AI spending threatens credit quality of Amazon, Meta, Alphabet and others
   - URL: <https://www.cnbc.com/2026/07/24/moodys-ai-spending-credit-quality-amazon-meta-alphabet.html>
   - Source: CNBC
   - Published: 2026-07-24T17:37:49Z
## YouTube (10)

1. The Fight Over Open Source AI, Anthropic's $1.5B Payout, NYC Socialists: Evictions = Violence?
   - URL: <https://www.youtube.com/watch?v=wcV0SRPFK9s>
   - Channel: All-In Podcast
   - Published: 2026-07-24T21:04:37Z
   - Views: 94,558

2. What did Anthropic do?! (Opus 5)
   - URL: <https://www.youtube.com/watch?v=tHQ34j8_toI>
   - Channel: Matthew Berman
   - Published: 2026-07-24T21:47:58Z
   - Views: 44,472

3. OpenAI just released Codex Voice (It's basically Jarvis)
   - URL: <https://www.youtube.com/watch?v=hLFs9JtMaRg>
   - Channel: Riley Brown
   - Published: 2026-07-24T16:09:30Z
   - Views: 36,337

4. OpenAI Rogue AI Model
   - URL: <https://www.youtube.com/watch?v=WB_qUIBo6H8>
   - Channel: UFD Tech
   - Published: 2026-07-24T09:02:08Z
   - Views: 30,655

5. Claude Opus 5 is Going to Save You Money
   - URL: <https://www.youtube.com/watch?v=k7VI66CkKEY>
   - Channel: Nate Herk | AI Automation
   - Published: 2026-07-24T17:45:21Z
   - Views: 21,337

6. AI News: NotebookLM Folders; New Models (Kimi, Gemini, Grok); Rogue AI Models + More
   - URL: <https://www.youtube.com/watch?v=HhF8A1MUc4c>
   - Channel: Paul J Lipsky
   - Published: 2026-07-24T13:00:11Z
   - Views: 19,690

7. Anthropic to pay settlement to Harry Potter publisher
   - URL: <https://www.youtube.com/watch?v=UX-zh-y57iY>
   - Channel: CNN
   - Published: 2026-07-25T01:39:32Z
   - Views: 9,928

8. Using Claude Design 2.0 to NOT Produce SLOP
   - URL: <https://www.youtube.com/watch?v=YSYqFBq68Wk>
   - Channel: DesignCourse
   - Published: 2026-07-24T15:50:46Z
   - Views: 8,517

9. Full Workshop: Setting Yourself Up for Success —Jason Liu, OpenAI Codex
   - URL: <https://www.youtube.com/watch?v=il1c1a2FufU>
   - Channel: AI Engineer
   - Published: 2026-07-24T15:00:06Z
   - Views: 5,395

10. Why US Wants AI Kill Switch After OpenAI's Rogue AI Security Breach | FP Explains
   - URL: <https://www.youtube.com/watch?v=PJi1i3ExD78>
   - Channel: Firstpost
   - Published: 2026-07-24T11:00:12Z
   - Views: 3,114
## Reddit (10)

1. Codex via gpt plans or GitHub Copilot plans?
   - URL: <https://www.reddit.com/r/vibecoding/comments/1v5yv64/codex_via_gpt_plans_or_github_copilot_plans/>
   - Subreddit: r/vibecoding
   - Published: 2026-07-25T05:06:59Z
   - Score: 0
   - Comments: 9

2. Apparently “ChatGPT Web Doesn’t Use Your Codex Quota” Now Means “Unless We Quietly Rename It Work”
   - URL: <https://www.reddit.com/r/ChatGPT/comments/1v5a4u2/apparently_chatgpt_web_doesnt_use_your_codex/>
   - Subreddit: r/ChatGPT
   - Published: 2026-07-24T12:34:57Z
   - Score: 0
   - Comments: 6

3. Opus 5's effort dial is not monotonic. Above "high", coding scores go down, and Anthropic's own migration guide says so.
   - URL: <https://www.reddit.com/r/artificial/comments/1v60pga/opus_5s_effort_dial_is_not_monotonic_above_high/>
   - Subreddit: r/artificial
   - Published: 2026-07-25T06:43:36Z
   - Score: 0
   - Comments: 5

4. I built a tool that distills your Claude Code session history into memory your agent can recall.
   - URL: <https://www.reddit.com/r/ClaudeAI/comments/1v61p8o/i_built_a_tool_that_distills_your_claude_code/>
   - Subreddit: r/ClaudeAI
   - Published: 2026-07-25T07:37:36Z
   - Score: 0
   - Comments: 2

5. Local web search plugin for LLM agents that cuts tokens by 87% and cost by 66%
   - URL: <https://www.reddit.com/r/developersIndia/comments/1v60n7r/local_web_search_plugin_for_llm_agents_that_cuts/>
   - Subreddit: r/developersIndia
   - Published: 2026-07-25T06:40:12Z
   - Score: 0
   - Comments: 2

6. OpenAI took ten days to tell Hugging Face its models were behind the July 11 weekend hack, report claims — rogue AI agents reportedly active on the open Internet for several days
   - URL: <https://www.reddit.com/r/technology/comments/1v61cyl/openai_took_ten_days_to_tell_hugging_face_its/>
   - Subreddit: r/technology
   - Published: 2026-07-25T07:18:17Z
   - Score: 0
   - Comments: 2

7. The new Codex limits are k*lling me!!!
   - URL: <https://www.reddit.com/r/vibecoding/comments/1v61hqt/the_new_codex_limits_are_klling_me/>
   - Subreddit: r/vibecoding
   - Published: 2026-07-25T07:25:41Z
   - Score: 0
   - Comments: 2

8. Codex / ChatGPT floored me yesterday - Sol the Infra Engineer
   - URL: <https://www.reddit.com/r/OpenAI/comments/1v61b72/codex_chatgpt_floored_me_yesterday_sol_the_infra/>
   - Subreddit: r/OpenAI
   - Published: 2026-07-25T07:15:31Z
   - Score: 0
   - Comments: 1

9. Stop maintaining CLAUDE.md, .cursorrules and the rest by hand: write one AGENTS.md, symlink the one holdout, generate the edge cases
   - URL: <https://www.reddit.com/r/WebAfterAI/comments/1v5jsle/stop_maintaining_claudemd_cursorrules_and_the/>
   - Subreddit: r/WebAfterAI
   - Published: 2026-07-24T18:31:28Z
   - Score: 0
   - Comments: 1

10. MacOS Desktop app forces Voice live mode to eat up weekly Usage.
   - URL: <https://www.reddit.com/r/codex/comments/1v61wbo/macos_desktop_app_forces_voice_live_mode_to_eat/>
   - Subreddit: r/codex
   - Published: 2026-07-25T07:48:54Z
   - Score: 0
   - Comments: 1
## X / Twitter (10)

1. Exa web search is now available as an official plugin in Grok Build, bringing agent-focused web search into Grok Build.
   - URL: <https://x.com/SpaceXAI/status/2080731124729512283>
   - Handle: @SpaceXAI
   - Published: 2026-07-24T19:05:32Z
   - Views: 137,000
   - Likes: 1,300

2. Grok STT is now live on OpenRouter. Speech-to-text supports 25 languages, word-level timestamps and speaker diarisation at $0.10 per audio hour.
   - URL: <https://x.com/SpaceXAI/status/2080749255183245691>
   - Handle: @SpaceXAI
   - Published: 2026-07-24T20:17:35Z
   - Views: 99,000
   - Likes: 676

3. Claude Opus 5 is now available and rolling out in GitHub Copilot. Early testing showed strong performance on agentic coding workflows, targeted changes and work validation.
   - URL: <https://x.com/github/status/2080702791887315229>
   - Handle: @github
   - Published: 2026-07-24T17:12:57Z
   - Views: 72,000
   - Likes: 344

4. Claude Opus 5 is now available in Perplexity and Perplexity Computer. It outperformed all but Fable 5 in Perplexity's WANDR evaluation while being 57% cheaper.
   - URL: <https://x.com/perplexity_ai/status/2080778151962214575>
   - Handle: @perplexity_ai
   - Published: 2026-07-24T22:12:25Z
   - Views: 34,000
   - Likes: 425

5. Introducing Workflows in Runway Agent. Build, run or edit node-based workflows through natural language for high-quality outputs at scale.
   - URL: <https://x.com/runwayml/status/2080649234672439389>
   - Handle: @runwayml
   - Published: 2026-07-24T13:40:08Z
   - Views: 25,000
   - Likes: 207

6. Kimi K3 lands on Together AI on Monday. In 452 DeepSWE rollouts against Claude Fable 5, Together AI reported near-flagship coding at roughly 35% of the price.
   - URL: <https://x.com/togethercompute/status/2080723960359211197>
   - Handle: @togethercompute
   - Published: 2026-07-24T18:37:04Z
   - Views: 11,000
   - Likes: 177

7. Replit shipped voice interaction with Agent, building from Claude or Slack, and persistent stack context as part of its monthly product update.
   - URL: <https://x.com/Replit/status/2080699531662967018>
   - Handle: @Replit
   - Published: 2026-07-24T17:00:00Z
   - Views: 6,300
   - Likes: 39

8. Claude Opus 5 is now available on Databricks for governed custom applications and agents built with Lakehouse data.
   - URL: <https://x.com/databricks/status/2080709560726163764>
   - Handle: @databricks
   - Published: 2026-07-24T17:39:51Z
   - Views: 5,500
   - Likes: 37

9. Replit's weekly update covered its new mobile app, cheaper deployments, a unified tools pane and the Replit MCP beta.
   - URL: <https://x.com/Replit/status/2080775766921400660>
   - Handle: @Replit
   - Published: 2026-07-24T22:02:56Z
   - Views: 5,000
   - Likes: 29

10. The Washington Post processes 1.79 billion input tokens each month through Together AI, running open models such as Llama and Mistral in production.
   - URL: <https://x.com/togethercompute/status/2080778045892272203>
   - Handle: @togethercompute
   - Published: 2026-07-24T22:11:59Z
   - Views: 3,100
   - Likes: 9