https://modelgauntlet.com/All Model Gauntlet publications in one feed: source-backed news, weekly race briefings, reviewed release briefs, and research reports on the AI model race.en-ushttps://modelgauntlet.com/briefings/weekly/2026-07-15/https://modelgauntlet.com/briefings/weekly/2026-07-15/According to LMArena's July 12, 2026 snapshot, Anthropic holds a narrow lead over a compressed chase group, and the published confidence intervals overlap. Every claim in this briefing links to a named source and its date.Wed, 15 Jul 2026 12:00:00 GMThttps://modelgauntlet.com/news/anthropic-leads-july-12-lmarena-provider-view/https://modelgauntlet.com/news/anthropic-leads-july-12-lmarena-provider-view/Anthropic holds the highest provider-frontier point estimate in LMArena's July 12, 2026 text style-control overall snapshot.Tue, 14 Jul 2026 12:00:00 GMThttps://modelgauntlet.com/briefings/claude-fable-5/https://modelgauntlet.com/briefings/claude-fable-5/Anthropic released Claude Fable 5 on June 9, 2026. It now scores 1507.5 in LMArena's July 12, 2026 snapshot, where it is Anthropic's leading model.Tue, 14 Jul 2026 12:00:00 GMThttps://modelgauntlet.com/briefings/gpt-5-5/https://modelgauntlet.com/briefings/gpt-5-5/OpenAI released GPT-5.5 on April 23, 2026. It gives OpenAI a new multimodal, language and vision option with API access, according to Epoch AI's catalog.Tue, 14 Jul 2026 12:00:00 GMThttps://modelgauntlet.com/briefings/gemini-flash-3-1-tts/https://modelgauntlet.com/briefings/gemini-flash-3-1-tts/Google released Gemini Flash 3.1 TTS on April 15, 2026. It gives Google a new audio option with API access, according to Epoch AI's catalog.Tue, 14 Jul 2026 12:00:00 GMThttps://modelgauntlet.com/briefings/muse-spark/https://modelgauntlet.com/briefings/muse-spark/Meta released Muse Spark on April 8, 2026. It gives Meta a new multimodal, language and vision option with API access, according to Epoch AI's catalog.Tue, 14 Jul 2026 12:00:00 GMThttps://modelgauntlet.com/briefings/grok-4-20/https://modelgauntlet.com/briefings/grok-4-20/xAI released Grok 4.20 on February 17, 2026. It gives xAI a new language option with API access, according to Epoch AI's catalog.Tue, 14 Jul 2026 12:00:00 GMThttps://modelgauntlet.com/reports/state-of-the-race/2026-q3/https://modelgauntlet.com/reports/state-of-the-race/2026-q3/Anthropic leads the July 12, 2026 LMArena provider-frontier snapshot. Explore the separate historical archive and the methodology behind both views.Tue, 14 Jul 2026 12:00:00 GMThttps://modelgauntlet.com/reports/launch-impact/claude-fable-5/https://modelgauntlet.com/reports/launch-impact/claude-fable-5/What the Epoch catalog and July 2026 LMArena snapshot establish about Claude Fable 5, and what they cannot establish about launch impact.Tue, 14 Jul 2026 12:00:00 GMThttps://modelgauntlet.com/reports/lab-momentum/selected-archive/https://modelgauntlet.com/reports/lab-momentum/selected-archive/A bounded reading of provider movement across eleven selected LMArena artifacts from May 2023 through August 2025.Tue, 14 Jul 2026 12:00:00 GMThttps://modelgauntlet.com/reports/practical-model-selection/evidence-first-shortlist/https://modelgauntlet.com/reports/practical-model-selection/evidence-first-shortlist/A six-step model-selection workflow using sourced task, domain, access, weights, release, and Arena evidence without a universal score.Tue, 14 Jul 2026 12:00:00 GMT