Side-by-side comparison of pricing, 12 benchmarks, and generation speed.
| Metric | Mistral Small (Sep '24) | Solar Pro 3 |
|---|---|---|
| Input ($/M tokens) | $0.2 | $0.15 |
| Output ($/M tokens) | $0.6 | $0.6 |
Verdict. Solar Pro 3 takes the aggregate benchmark matchup 2–0 across 2 categories. Real workloads usually care about a handful of specific tasks — see the per-benchmark table above.
Pricing. Both models sit in the budget bracket for output-token pricing. At 1.0× the per-million-token cost, Solar Pro 3 is meaningfully cheaper if your traffic is output-heavy (long completions, document generation, agent loops). Solar Pro 3 makes more sense when output volume is low and absolute reasoning quality justifies the premium.
Strengths. Mistral Small (Sep '24) is strongest on Intelligence Index (4.3). Solar Pro 3 leads on Coding Index (16.2), Intelligence Index (14.5).
Speed. Throughput is comparable — 143 tok/s vs 152 tok/s — so generation speed shouldn't drive your choice here. Look at the per-benchmark wins instead.
Provider. Mistral and Upstage sell to overlapping but distinct developer audiences: Mistral tends to ship frontier reasoning models with premium positioning, while Upstage often prices more aggressively. Your existing vendor relationships, billing, and SLA preferences may matter as much as the raw numbers above.
Workload cost. Workload scenarios (per million requests at 30M input + 15M output tokens): Mistral Small (Sep '24) costs $15.00 ($180/year); Solar Pro 3 costs $13.50 ($162/year). At a smaller 5M-input/2M-output scale (single-developer tool or prototype): Mistral Small (Sep '24) ≈ $2.20/run, Solar Pro 3 ≈ $1.95/run. At agent/realtime scale (200M input / 100M output per million requests): Mistral Small (Sep '24) ≈ $100/run, Solar Pro 3 ≈ $90/run. Solar Pro 3 becomes more attractive at higher volume — the absolute per-token pricing difference compounds when you ship at scale.
Recommendation. Both models have legitimate use cases — the right answer depends on whether you are optimizing for benchmark ceiling, latency, or unit cost. Start with the cheaper / faster model, evaluate against your specific task, and only switch if the upgrade shows a meaningful lift.
Data from Artificial Analysis API — 12 benchmarks
Solar Pro 3 is cheaper overall. Its blended price (3:1 input/output ratio) is $0.26/M tokens vs $0.30/M for Mistral Small (Sep '24).
Solar Pro 3 wins 2 out of 12 benchmarks compared to 0 for Mistral Small (Sep '24). See the detailed benchmark chart above for per-category results.
Solar Pro 3 generates tokens faster at 152 tok/s vs 143 tok/s. Mistral Small (Sep '24) also has lower time-to-first-token (0.81s vs 2.38s).
Choose based on your priorities: Solar Pro 3 for lower cost, Solar Pro 3 for stronger benchmark performance, and Solar Pro 3 for faster generation. For latency-sensitive apps, check the TTFT comparison above.