Pairwise benchmark snapshot · Aug 17, 2026
In this head-to-head showdown, GPT-4.5 Orion delivers higher overall intelligence and human-preferred responses (Elo 1,540 vs 1,456), while GPT-4.5 Orion leads in SWE-bench software engineering benchmarks (71%), 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.
8 direct benchmark disciplines evaluated across capability, speed, and cost
OpenAI largest dense non-reasoning model with expansive world knowledge and reduced hallucinations.
Mistral European flagship with strong function calling.
Δ 84 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 | GPT-4.5 Orion | Mistral Large 3 | Advantage Delta |
|---|---|---|---|
| Preference Elo | +84 | ||
| Coding Elo | — | — | |
| LiveBench | +6.7% | ||
| SWE-bench | +15.6% | ||
| GPQA Diamond | +9.9% | ||
| Time to first token | +160 ms | ||
| Output speed | 60 tok/s | 112 tok/s | +52 tok/s |
| Input price | +$73/1M | ||
| Output price | $150/1M | +$144/1M | |
| Context window | — |
Simulate monthly production API costs in USD (US Dollar).
Mistral Large 3 is estimated to save $4,715.00/month ($56,580/year).
Higher SWE-bench (71%).
Lower output list price ($6/1M).
Lower TTFT (190 ms).
Larger window (128k).
Both accept images. Defaulting to the higher-Elo side (GPT-4.5 Orion).
| Target Workload | Recommended Pick | Evaluation Rationale |
|---|---|---|
| Repo / coding agents | GPT-4.5 Orion | Higher SWE-bench (71%). |
| 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 | GPT-4.5 Orion | Larger window (128k). |
| Screenshots / vision | GPT-4.5 Orion | Both accept images. Defaulting to the higher-Elo side (GPT-4.5 Orion). |
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