Pairwise benchmark snapshot · Aug 17, 2026
In this head-to-head showdown, Claude Opus 4.6 delivers higher overall intelligence and human-preferred responses (Elo 1,574 vs 1,456), while Claude Opus 4.6 leads in SWE-bench software engineering benchmarks (75.9%), while Mistral Large 3 is more budget-friendly at $6/1M per 1M output tokens. Review the complete breakdown below to determine which model best fits your performance and budget requirements.
9 direct benchmark disciplines evaluated across capability, speed, and cost
Follow-on Opus release. Slightly behind 4.5 on official SWE-bench bash-only in the last published sweep; stronger multi-step autonomous agent reasoning.
Mistral European flagship with strong function calling.
Currently comparing Claude Opus 4.6 vs Mistral Large 3. Alternative family tiers available.
Simulate accuracy gains vs added response time & token cost
Reasoning models “think before answering” by generating internal reasoning tokens. Higher effort improves math, coding, and logic accuracy, but increases response delay and token costs.
Δ 118 Arena Elo pts
112 tok/s
$6 / 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 Opus 4.6 | Mistral Large 3 | Advantage Delta |
|---|---|---|---|
| Preference Elo | +118 | ||
| Coding Elo | — | — | |
| LiveBench | +10.2% | ||
| SWE-bench | +20.5% | ||
| GPQA Diamond | +10.7% | ||
| Time to first token | +170 ms | ||
| Output speed | 64 tok/s | 112 tok/s | +48 tok/s |
| Input price | +$3/1M | ||
| Output price | +$19/1M | ||
| Context window | +872k |
Simulate monthly production API costs in USD (US Dollar).
Mistral Large 3 is estimated to save $390.00/month ($4,680/year).
Higher SWE-bench (75.9%).
Lower output list price ($6/1M).
Lower TTFT (190 ms).
Larger window (1M).
Both accept images. Defaulting to the higher-Elo side (Claude Opus 4.6).
| Target Workload | Recommended Pick | Evaluation Rationale |
|---|---|---|
| Repo / coding agents | Claude Opus 4.6 | Higher SWE-bench (75.9%). |
| High-volume chat | Mistral Large 3 | Lower output list price ($6/1M). |
| Voice / low-latency UI | Mistral Large 3 | Lower TTFT (190 ms). |
| Long-document RAG | Claude Opus 4.6 | Larger window (1M). |
| Screenshots / vision | Claude Opus 4.6 | Both accept images. Defaulting to the higher-Elo side (Claude Opus 4.6). |
Slightly behind 4.5 on one official SWE-bench sweep; stronger long-horizon traces. We keep the row for old vs URLs.
Jan 2026. Not the Elo crown. Useful when residency and tools matter more than Arena.
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