AI Models, Products & Applications
Four models tie for decision synthesis, and the leader costs four times the cheapest
If you route multi-perspective decision synthesis to the model with the highest score, you are paying roughly four times what an equally good option charges. The four top models on this task sit inside each other’s confidence intervals, so there is no measurable quality gain for the extra spend. Pick among them on price, latency and operational fit instead.
The tie at the top
The task is synthesizing multiple perspectives into a single decision, scored out of 10 with a confidence interval around each result. Four models lead the field and their intervals overlap, which means the benchmark cannot separate them on quality.
| Model | Score (out of 10) | Sync cost per task run |
|---|---|---|
| Moonshot Kimi K3 | 8.82 (±0.15) | $0.21 [^1] |
| GLM-5.3 | 8.73 (±0.16) | $0.10 [^1] |
| Grok 4.5 | 8.72 (±0.09) | $0.05 [^1][^2] |
| Thinking Machines Inkling | 8.72 (±0.27) | $0.06 [^1][^2] |
Kimi K3 has the highest point score, but the intervals show why that number alone is a poor basis for choosing. Grok 4.5 and Thinking Machines Inkling deliver first-tier quality at a fraction of the sync price, and Grok 4.5 also has the tightest interval of the four.
What that means for routing
On this evidence there is no quality-based reason to pay the nominal leader’s price. If you need top-tier synthesis quality, sending the work to Grok 4.5 or Thinking Machines Inkling in sync mode gets you the same tier for far less per run.
That does not make Kimi K3 or GLM-5.3 bad choices. It means the deciding factors among the four should be things the score does not capture, such as latency in your region, rate limits, or which provider you already have in production.
The value pick just below
A second tier scores a step lower, and one entry there is worth a look when the budget matters more than the last few tenths of a point. Qwen 3.7 Plus scores 8.49 out of 10 (±0.17) and costs $0.02 per task run in sync mode [^1][^2]. That is a small step down in score for a sync price well under any of the four leaders.
Claude Sonnet 5 also sits in this second tier at 8.6 out of 10 (±0.13), but its $0.05 per task run was measured in batch mode [^1][^2]. Batch and sync prices are not directly comparable, so treat that figure as a separate category rather than a rival to the sync numbers above.
The caveat
This routing holds for one task, one quality bar and one cost mode. Raise the bar and the second tier drops out; relax it and cheaper models further down the table start to make sense. Change the cost mode and the Claude Sonnet 5 comparison changes with it.
Where to look next
The live benchmark at https://llm-bench.kapualabs.com/ lets you set the quality bar you actually need and compare batch against sync pricing for yourself, and the task page for this comparison is at https://llm-bench.kapualabs.com/task/multi-perspective-decision-synthesis/. The method behind the scores and intervals is documented at https://llm-bench.kapualabs.com/methodology/.