Gemini 4 Argon vs Muse Wonder: Half the Price… Until 1 December | AI Deep Dive

Gemini 4 Argon vs Muse Wonder: Google's and Meta's newest frontier AI models sit just one point apart on the Artificial Analysis Intelligence Index (53 vs 52), yet Argon costs less than half as much per task – about £1.50 ($1.99) against £3.40 ($4.52). But Google's introductory price doubles on 1 December, most of Muse Wonder's bill comes from reading rather than writing, and Meta's biggest move this month was giving away Muse Spark Open, an 816-billion-parameter open-weights model. This deep dive explains what that means if you're actually choosing a model for work, coding or your business. 📖 Read the full write-up, tables and transcript: https://aitoolsreview.co.uk/insights/gemini-4-argon-vs-muse-wonder 📊 More AI model comparisons and pricing: https://aitoolsreview.co.uk ⏱️ CHAPTERS 0:00 Two models, one point apart 0:51 Meta walks in: Muse Wonder, Active Memory and Active Focus 2:58 Google's locked door: Gemini 4 Argon's rollout and benchmarks 4:43 The hidden bill: cost per task, input tokens and the 1 December price rise 6:51 The free giant: Muse Spark Open (816B parameters, 42B active) 8:30 So which should you use? 10:16 The fight has moved 🔑 KEY NUMBERS • Artificial Analysis Intelligence Index: Gemini 4 Argon 53, Muse Wonder 52, Muse Wonder Full 56 • Cost per benchmark task: Argon ≈ £1.50 ($1.99), Muse Wonder ≈ £3.40 ($4.52) • Price per million tokens: Argon $2 in / $10 out (≈ £1.50 / £7.50) until 30 November, then $4 / $20 (≈ £3 / £15) – the same as Muse Wonder • Muse Wonder reads ≈ 7.7 million input tokens per task; 76% of its bill is input • Hallucination rate (AA-Omniscience): Argon 15%, Muse Wonder Full 23% (down from 33%), Muse Wonder 27% • Terminal-Bench 4.0: Argon 57.4%, Claude Opus 5.5 66.4% (Google's own table) • Muse Spark Open: 816B parameters, 42B active, 256 experts, free to download and fine-tune 📚 SOURCES Meta – Introducing Muse Wonder: https://research.meta.ai/blog/muse-wonder Meta Newsroom: https://about.fb.com/news/2026/10/introducing-muse-wonder-models/ Google – Gemini 4 Argon: https://blog.google/innovation-and-ai/models-and-research/gemini-models/gemini-4-argon/ Artificial Analysis – Muse Wonder: https://artificialanalysis.ai/articles/muse-wonder TechCrunch: https://techcrunch.com/2026/10/12/meta-releases-its-first-frontier-model-muse-wonder/ Let's Data Science: https://letsdatascience.com/blog/gemini-4-argon-public-independent-tests-rank-it-first-and-eighth OrcaRouter: https://www.orcarouter.ai/blog/muse-wonder-vs-gemini-4-argon Hugging Face – Muse Spark Open: https://huggingface.co/meta-models/Muse-Spark-Open-816B-A42B The post-December cost comparison is our own estimate from Artificial Analysis's figures, not a re-run of the benchmark. Prices converted at roughly $1 = £0.75. 🎬 CREDITS Narration: AI voice (Chatterbox by Resemble AI, MIT licence), cloned from a CSTR VCTK Corpus speaker, University of Edinburgh (CC BY 4.0). Quotes from people featured are shown on screen and read by our narrator. Music: "Airy Pulse", made with Suno. Press material: Meta Newsroom (about.fb.com); Google and Google DeepMind (Source: Google, blog.google). Alexandr Wang photo: Meta Platforms, Inc., via Wikimedia Commons, CC BY-SA 4.0, adapted. Photos via Unsplash: İsmail Enes Ayhan, Zoshua Colah. Page captures and headlines are shown for news reporting and review, with sources credited on screen. AI Tools Review is an independent UK site testing AI tools and models, with prices in pounds. Subscribe for weekly AI news and deep dives. #GeminiArgon #MuseWonder #AI

🤖AI Summary

Gemini 4 Argon and Muse Wonder are one point apart on the Artificial Analysis Intelligence Index (53 vs 52), but Argon costs about £1.50 ($1.99) per task against £3.40 ($4.52), until Google doubles Argon's price on 1 December. Muse Wonder's bill is mostly input tokens, and Meta's free 816B Muse Spark Open model may matter more than either.

💡Key Takeaways