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Complete benchmark comparison of Gemini 3.6 Flash vs Claude Sonnet 5. Every score sourced from official model cards and system cards. Charts, radar plots, pricing analysis, and a clear verdict on which model to choose for your workload.
Claude Opus 5 vs Kimi K3: Opus 5 leads the independent BenchLM aggregate 85.88 to 79.98 and posts a 43.3–43.5% Frontier-Bench score that K3 has never even been tested on.
Claude Opus 5 vs Claude Fable 5: Opus 5 beats Fable 5 on 7 of 12 benchmarks including Frontier-Bench (+9.6) and OSWorld 2.0 — at half the price ($25 vs $50/1M output). Fable 5 edges SWE-bench Pro by just 0.8 pts. Full comparison with radar charts, pricing, data retention, and verdict.
Claude Opus 5 vs GPT-5.6 Sol: Opus 5 leads 9 of 12 benchmarks including SWE-bench Pro (+14.6 pts) and ARC-AGI-3 (3.9× better). Sol counters with Terminal-Bench 2.1 (91.9% Ultra) and DeepSWE. Opus 5 costs 17% less on output ($25 vs $30/1M). Full comparison with radar charts, pricing, and verdict.
Kimi K3 vs Claude Fable 5 across 35 benchmarks: Fable wins 22, K3 wins 12, 1 tie. K3 leads Terminal-Bench 2.1, SWE Marathon (+7), BrowseComp, and took #1 on the Frontend Code Arena — all at 70% less cost. Fable dominates FrontierSWE (+5.4), HLE (+9.8), and vision. Full scorecard with radar charts and pricing analysis.
Kimi K3 vs Claude Opus 4.8: K3 leads all 9 shared coding benchmarks and costs 40% less. Opus 4.8 counters with independently verified scores, adjustable reasoning, and mature production tooling. Full comparison with radar charts and pricing tables.
Hy3 (295B MoE, Apache 2.0, $0.80/1M) vs Claude Sonnet 5 (proprietary, $10/1M). Sonnet leads every shared benchmark (+0.5 to +8.7 pts). But Hy3 ties on BrowseComp (84.2 vs 84.7), leads MCP Atlas (79.1%), costs 12.5x less. Open-weight agent vs proprietary coder — 5 charts, 10-point verdict.
Claude Fable 5 (80.3% SWE-bench Pro, $50/1M) vs Claude Sonnet 5 (63.2%, $15/1M). Fable 5 leads all 8 shared benchmarks by +8.2 pts avg — but Sonnet 5 delivers 79% of the capability at 30% of the price. Full comparison with 4 custom charts, pricing deep-dive, tokenizer analysis, and a 10-point verdict matrix.
Claude Sonnet 5 vs DeepSeek V4 Pro: Sonnet leads every coding benchmark (+7.8 Pro, +9.2 HLE tools). DeepSeek is #1 global on LiveCodeBench (93.5%), MIT open-weight, and 7.8× cheaper per task ($0.12 vs $0.90). Is 7.8 more Pro points worth 7.8× the cost?
Claude Sonnet 5 vs Qwen 3.7 Max: Sonnet leads coding (+2.6 Pro, +4.8 Verified). Qwen dominates math (92.4% GPQA), runs 35-hour autonomous agents, and is 2.7x cheaper ($3.75 vs $15 output). The coder vs the marathon runner — full comparison.
Claude Sonnet 5 vs Gemini 3.5 Flash: Speed vs Depth. Sonnet leads every coding benchmark (+8.1 Pro, +4.2 TB). Gemini leads MCP Atlas (83.6%), is 4x faster (289 tok/s), 2x cheaper. Coding specialist vs tool orchestration speed king — pick your weapon.
Claude Sonnet 5 vs GLM 5.2: near-ties on every benchmark (±0.6-2.7 pts). GLM 3.4x cheaper on output, MIT open-weight, self-hostable. Sonnet has OSWorld, BrowseComp, Anthropic safety ecosystem. Proprietary premium vs open-weight value.