
GA since Nov 10, 2026, Gemini 4 Carbon ranks #1 in Arena Text (1526), Mercor APEX-Agents (84.2%), and LiveBench 2.0 Coding (91.0), plus #2 on Terminal-Bench 4.0 (65.2%). It trails #1 Claude Fable 5.2 by 4.7 BenchAlign points, yet edges #3 Claude Opus 5.5 by 0.9 points on Intelligence Index v5 while matching half of Opus 5.5's standard $4/$20 API rate through Nov 30. Key 2026 benchmarks — Developer: Google; Intelligence Index v5: 60.0 (#2); BenchAlign v5.8: 89.2 (#2); API Pricing (1M): $2 in / $10 out (Nov intro); Context Window: 1M tokens.
Ranked #2 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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