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Four new frontier AI models compared on benchmarks, cost, and access

By PulseAugur Editorial · [1 sources] ·

Four new frontier AI models—Claude Fable 5.1, GPT-6 Astra, GPT-6.1 Sol, and Gemini 4 Argon—have been released within a month, each with distinct strengths and pricing structures. While benchmark scores show some overlap, differences in cost per task, caching capabilities, and access policies significantly impact their suitability for various applications. OpenAI canceled GPT-6.1 Astra due to internal testing failures, leaving GPT-6 Astra as their current top model. Gemini 4 Argon leads in knowledge work and long-horizon coding, while GPT-6 Astra excels in software engineering and computer use. GPT-6.1 Sol is positioned as a cost-effective option for general use, and Claude Fable 5.1 shows strong performance in coding and reasoning tasks. AI

IMPACT New models offer specialized capabilities and cost efficiencies, guiding users to select the best fit for specific workloads.

RANK_REASON Comparison of multiple frontier AI models on benchmarks, pricing, and access. [lever_c_demoted from research: ic=1 ai=1.0]

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AI-generated summary · Google Gemini · from 1 sources. How we write summaries →

Four new frontier AI models compared on benchmarks, cost, and access

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Comparison of multiple frontier AI models on benchmarks, pricing, and access. [lever_c_demoted from research: ic=1 ai=1.0]
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COVERAGE [1]

  1. MarkTechPost TIER_1 Deutsch(DE) · Asif Razzaq ·

    GPT-6 Astra vs GPT-6.1 Sol vs Gemini 4 Argon vs Claude Fable 5.1: Which Frontier Model Fits Which Job

    <p>Astra leads computer use, Argon leads legal and finance work, and Sol wins on price for coding agents.</p> <p>The post <a href="https://www.marktechpost.com/2026/10/04/gpt-6-astra-vs-gpt-6-1-sol-vs-gemini-4-argon-vs-claude-fable-5-1-which-frontier-model-fits-which-job/">GPT-6 …

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