Pairwise benchmark snapshot · Aug 16, 2026
In this head-to-head showdown, Claude Sonnet 5 delivers higher overall intelligence and human-preferred responses (Elo 1,556 vs 1,506), while Claude Sonnet 5 leads in SWE-bench software engineering benchmarks (73.8%), while Gemini 3.6 Flash is more budget-friendly at $3.75/1M per 1M output tokens. Review the complete breakdown below to determine which model best fits your performance and budget requirements.
10 direct benchmark disciplines evaluated across capability, speed, and cost
Anthropic workhorse. Official $2/$10 per 1M tokens made permanent on Aug 10 2026.
Google Jul 21 workhorse. Now shares the 3.7 Flash introductory $0.75/$3.75 rate through Dec 31 2026.
Currently comparing Claude Sonnet 5 vs Gemini 3.6 Flash. Alternative family tiers available.
Δ 50 Arena Elo pts
198 tok/s
$3.75 / 1M output
Relative percentile scores computed across all active models in the benchmark catalog.
Comparing top Western standard models with China's leading frontier rival across 6 skill dimensions. Tap any spoke or dot to inspect.
Category wins across reasoning intelligence, generation speed, and token cost.
Preference Elo, Coding proficiency, SWE-bench & LiveBench accuracy
Generation throughput and time to first token responsiveness
Cost per million tokens and max context window length
| Benchmark | Claude Sonnet 5 | Gemini 3.6 Flash | Advantage Delta |
|---|---|---|---|
| Preference Elo | +50 | ||
| Coding Elo | +48 | ||
| LiveBench | +3.2% | ||
| SWE-bench | +3% | ||
| GPQA Diamond | +3.2% | ||
| Time to first token | +83 ms | ||
| Output speed | 118 tok/s | 198 tok/s | +80 tok/s |
| Input price | $0.75/1M | +$1.25/1M | |
| Output price | $3.75/1M | +$6.25/1M | |
| Context window | +49k |
Simulate monthly production API costs in USD (US Dollar).
Gemini 3.6 Flash is estimated to save $137.50/month ($1,650/year).
Higher SWE-bench (73.8%).
Lower output list price ($3.75/1M).
Lower TTFT (92 ms).
Larger window (1M).
Both accept images. Defaulting to the higher-Elo side (Claude Sonnet 5).
| Target Workload | Recommended Pick | Evaluation Rationale |
|---|---|---|
| Repo / coding agents | Claude Sonnet 5 | Higher SWE-bench (73.8%). |
| High-volume chat | Gemini 3.6 Flash | Lower output list price ($3.75/1M). |
| Voice / low-latency UI | Gemini 3.6 Flash | Lower TTFT (92 ms). |
| Long-document RAG | Gemini 3.6 Flash | Larger window (1M). |
| Screenshots / vision | Claude Sonnet 5 | Both accept images. Defaulting to the higher-Elo side (Claude Sonnet 5). |
Jul 21 workhorse that inherited $0.75/$3.75 through year-end. Keep the row; 3.7 is the newer sibling.
Usually Sonnet 5 vs Opus 5. Coding delta versus output $/1M. The workhorse question.
Aug 10 2026 made the $2/$10 list permanent. Sonnet is the default Claude unless the repo is actually on fire.
Most of Opus 4.5 coding at a mid-tier price. Sonnet 5 replaced it as the buy; 4.5 remains a compare baseline.
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Verified Head-to-Head Telemetry
price · Aug 13, 2026
Gemini 3.6 Flash (Jul 21) now shares the 3.7 intro rate
compare · Aug 10, 2026
Sonnet vs Opus in 2026: same family, different invoice
price · Aug 10, 2026
Claude Sonnet 5 at $2/$10: the 2026 Anthropic workhorse
launch · Feb 18, 2026
Claude Sonnet 4.5 is the previous workhorse — still a valid vs baseline
