
GA since Oct 13, 2026 on AI Pro and API, Gemini 4 Argon leads Arena Creative Writing (1525) and LiveBench 2.0 Reasoning (95.1), ranks #2 in Arena Text (1522) and Mercor APEX-Agents (82.4%), and posts a 4% AA-Omniscience hallucination rate. While 3.8 Intelligence Index points behind #6 Claude Sonnet 5.5, it beats #8 GPT-6.1 Terra on Arena preference and reasoning. Key 2026 benchmarks — Developer: Google; Intelligence Index v5: 50.4 (#9); BenchAlign v5.8: 79.1 (#8); API Pricing (1M): $2 in / $10 out (Nov intro); Context Window: 1M tokens.
Ranked #7 on "Claude Fable 5.2 vs. Gemini 4 Carbon? Top 10 Frontier AI Models Ranked (2026)". Cast your vote to back or challenge this spot.
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