Pairwise benchmark snapshot · Aug 17, 2026noindex (thin pair)
In this head-to-head showdown, Sakana: Fugu Ultra is more budget-friendly at $30/1M per 1M output tokens. Review the complete breakdown below to determine which model best fits your performance and budget requirements.
3 benchmarks evaluated across capability, speed, and cost
First Claude 4 Opus generation. Baseline for opus 4 vs opus 5.
Auto-discovered from OpenRouter (sakana/fugu-ultra). Preview until a second source matches.
Single model data
No latency data
$30 / 1M output
Relative percentile scores computed across all active models in the benchmark catalog.
Comparing top standard models across 6 key capability 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 | Sakana: Fugu Ultra | Advantage Delta |
|---|---|---|---|
| Preference Elo | — | — | |
| Coding Elo | — | — | |
| LiveBench | — | — | |
| SWE-bench | — | — | |
| GPQA Diamond | — | — | |
| Time to first token | — | — | |
| Output speed | 58 tok/s | — | — |
| Input price | +$10/1M | ||
| Output price | +$45/1M | ||
| Context window | +800k |
Simulate monthly production API costs in USD (US Dollar).
Sakana: Fugu Ultra is estimated to save $1,025.00/month ($12,300/year).
Need SWE-bench on both sides.
Lower output list price ($30/1M).
Need TTFT on both sides.
Larger window (1M).
Claude Opus 4 is the side marked multimodal in the catalog.
| Target Workload | Recommended Pick | Evaluation Rationale |
|---|---|---|
| Repo / coding agents | insufficient data | Need SWE-bench on both sides. |
| High-volume chat | Sakana: Fugu Ultra | Lower output list price ($30/1M). |
| Voice / low-latency UI | insufficient data | Need TTFT on both sides. |
| Long-document RAG | Sakana: Fugu Ultra | Larger window (1M). |
| Screenshots / vision | Claude Opus 4 | Claude Opus 4 is the side marked multimodal in the catalog. |
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Verified Head-to-Head Telemetry
