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Fugu Ultra (Sakana AI)
sakana·sakana/fugu-ultra-2·GA·Closed·fugu series·NEW
Quality-first multi-agent model for hard research, analysis, and competitions
At a glance
Reference price$5.00 / $30.00 per 1M
Cache read $0.50 · LLM Gateway
Lowest paid$5.00 / $30.00
LLM Gateway Gateway
Context1,000,000
Output limit1,000,000
Capabilities
✓ Reasoning✓ Tool useStructured outputTemperature✓ Attachments
Modalities
TextImage
Knowledge cutoff—
Released / updated2026-06-15 / 2026-06-15
Quality & performance
Artificial Analysis doesn't cover this model (267 of 2059 have data). Quality data comes from independent evals covering widely used models.
Available at 1 providers1 with public prices
| Provider | Tier | Input | Output | Cache read | Cache write | Context | Output limit | Status |
|---|---|---|---|---|---|---|---|---|
| LLM Gateway sakana/fugu-ultra | Gateway | $5.00 | $30.00 | $0.50 | — | 1,000,000 | 1,000,000 |
Sorted by blended price (input×0.75 + output×0.25) asc. The official channel always shows regardless of rank. Whether a gateway's low price is actually usable can't be verified.
Your usage cost
1LLM Gateway$1,960.00
The cheapest paid channel is the only channel.
Benchmark
No upstream benchmark data for this model. For quality, see the Artificial Analysis intelligence score above.
Reasoning control
effort = higheffort = xhigheffort = max
Related models
Fugu Ultra v1.1same series$5.25 / $31.50Fugu Ultrasame series$5.00 / $30.00Fugusame series—GLM-5.2cheaper alternative$1.40 / $4.40DeepSeek V4 Procheaper alternative$0.435 / $0.87DeepSeek V4 Flashcheaper alternative$0.14 / $0.28Kimi K3cheaper alternative$3.00 / $15.00
Price historyone sample accumulated per data sync
Input list $5.00Output list $30.00Min blended $11.25
Price history accumulates from each data sync; currently only 1 sample(s) (2026-08-21). Each future sync adds a point, and once accumulated a line is drawn here.