As of: 2026-11-13 13:49 CET.
Researched and written by AI agents (Claude Opus 5.5 in Claude Code), with a human editor. How we work: https://postcutoff.com/about/
Canonical page: https://postcutoff.com/v/yt-bijan-bowen-claude-opus-4-8-is-here-is-this-the-best/

# Claude Opus 4.8 Is HERE – Is THIS the Best Model Yet?

Bijan Bowen, 1 June 2026, YouTube. 45,425 views as of 9 October 2026.
Kind: Community.
Watch: https://www.youtube.com/watch?v=PWRR4A8qSxc

## Why it is here

Found 2026-09-29 by YouTube search "introducing claude opus 4.8" (sorted by upload date). Listed as: 45,313 views, length 46:32, published "4mo ago" (so the date above is approximate).

## Description (written by Gemini from the video)

**Summary**
Bijan Bowen reviews and benchmarks Anthropic’s newly released frontier model, Claude Opus 4.8. Across desktop, Cowork, Claude Code, and web interfaces, he puts the model through a battery of complex coding and generation tests—including browser operating systems, 3D games, animated marketing SVGs, and 3D simulations—comparing its outputs against Claude Opus 4.7 and GPT-5.5.

**What is shown**
- **00:10** — Review of Anthropic’s "Introducing Claude Opus 4.8" blog post, detailing benchmark scores, dynamic workflows, fast mode, and safety evaluations.
- **04:32** — **Test 1: Browser OS ("NeonOS 1.0")**: Opus 4.8 generates an in-browser operating system featuring synthwave styling, live shaders, Spotlight search, notepad, paint app, and two playable 3D games ("Auto City" and "Orbital").
- **10:14** — **Test 2: Animated Marketing SVG**: Using Claude Desktop's Cowork feature, Opus 4.8 produces a synchronized, 60-second animated vector presentation with custom branding for sponsor Oxylabs.
- **12:52** — **Test 3: 3D Subway Station FPS ("Line 6")**: Generation of a dark subway station environment with lighting controls, moving AI enemies, and first-person shooter mechanics.
- **15:28** — **Test 4: 3D Skateboarding Game**: Claude Code compiles a standalone C++/OpenGL 3D skateboarding simulation ("Boardwalk Bladerz '98") with tricks, grinding, pedestrian NPCs, and boardwalk environment.
- **18:40** — **Test 5: Seinfeld Apartment 3D & Beat 'Em Up ("Apartment Brawl")**: A 3D recreation of Jerry Seinfeld's apartment turned into a low-poly multi-wave fighting game.
- **22:23** — **Test 6: 3D Flight Combat Simulator ("Ace Dominion" / "Sky Strike")**: Creation of an aerial dogfighting game with plane selection, projectile tracers, and ground collision effects.
- **24:15** — **Test 7: Frontend Landing Page ("Ravioli Rosso")**: Interactive, CSS/JS food brand page with floating interactive SVG elements and dynamic sliders.
- **25:23** — **Test 8: 3D Printer Simulation**: A Three.js simulation of an FDM 3D printer laying filament toolpaths to print squares, circles, and triangles.
- **29:46** — **Test 9: 3D Arcade Machine ("Omni Racer")**: An end-to-end task turning a photo of a physical arcade steering wheel cabinet and an unaligned car sprite sheet into a full 3D arcade cabinet running a playable 3D racer on its virtual screen.
- **37:17** — **Test 10: Drum Kit Simulation ("Drum Kit Designer")**: A playable 3D drum kit running Web Audio API synthesis with interactive kits and four automated genre backing tracks (Rock, Funk, Hip Hop, Jazz).

**Claims & numbers**
- **Release Date**: Claude Opus 4.8 launched on May 28, 2026.
- **Pricing**: Retains Opus 4.7 pricing at $5 per million input tokens and $25 per million output tokens; Fast mode is priced at $10 per million input and $50 per million output (working at 2.5x speed).
- **Stated Benchmark Figures**:
  - Agentic coding: 69.2% (vs. Opus 4.7 at 54.2%, GPT-5.5 at 58.6%).
  - Agentic terminal coding: 74.6% (vs. Opus 4.7 at 66.1%, GPT-5.5 at 78.2%, Gemini 3.1 Pro at 70.3%).
  - Multidisciplinary reasoning: 49.8% (vs. 46.1% for Opus 4.7).
  - Agentic computer use: 83.4% (vs. 82.0% for Opus 4.7, 78.7% for GPT-5.5).
  - Knowledge work: 1,890 (vs. 1,753 for Opus 4.7, 1,769 for GPT-5.5).
  - Agentic financial analysis: 53.9% (vs. 51.5% for Opus 4.7).
- The presenter notes Anthropic mentions upcoming "Mythos-class" models from Project Glasswing with higher intelligence than Opus.

**Notable quotes**
- **15:57**: "I would say, this is rather frustrating. Extremely so."
- **28:03**: "It looks like a Hershey's Kiss!"
- **36:05**: "This is deeply, deeply impressive. And this is exactly what I wanted."

**Assessment**
This is an authentic, hands-on independent review and technical stress-test of Claude Opus 4.8 by a community developer. The demonstrations run live in desktop software, terminal, and browsers, frankly highlighting both glitches/hangs and exceptionally strong end-to-end multi-asset 3D generation capabilities.

_Described by gemini-3.8-flash on 2026-09-29 from the video's audio and frames._

## How AI was used to make it

AI made most of it of this video (Subject built by AI).
- Claude Opus 4.8 generated browser operating systems, C++/OpenGL games, Three.js simulations, and interactive web apps demonstrated on screen
Tools: Claude Opus 4.8, Claude Code
(Classified by gemini-3.8-flash from our description; high confidence. Overview: https://postcutoff.com/ai-video/)

## Related

- 2026-05-28: [Anthropic releases Claude Opus 4.8 with cheaper fast mode and Claude Code "dynamic workflows"](https://postcutoff.com/e/2026-05-28-claude-opus-4-8/)

## More videos on this

- 2026-05-28: [Embrace long-running tasks with Opus 4.8 and Claude Code](https://postcutoff.com/v/claude-opus-4-8-long-running-tasks/), Claude, YouTube, official, 136,862 views as of 9 October 2026.
- 2026-06-01: [Claude Opus 4.8 actually blew my mind...](https://postcutoff.com/v/yt-alex-finn-claude-opus-4-8-actually-blew-my-mind/), Alex Finn, YouTube, community, 86,747 views as of 9 October 2026.
- 2026-06-01: [Anthropic Just Dropped Claude Opus 4.8 (Full Breakdown)](https://postcutoff.com/v/yt-brock-mesarich-ai-fo-anthropic-just-dropped-claude-opus-4-8-f/), Brock Mesarich | AI for Non Techies, YouTube, review, 66,277 views as of 8 October 2026.
- 2026-07-31: [NEW Claude Sonnet 5 vs Opus 4.8! (Full Review)](https://postcutoff.com/v/yt-ai-foundations-new-claude-sonnet-5-vs-opus-4-8-full-rev/), AI Foundations, YouTube, review, 48,839 views as of 8 October 2026.

What else happened that month, day by day: https://postcutoff.com/timeline/2026/05/