SAFugu Ultra v2 Paid vs 
o4 Mini Paid
Fugu Ultra v2 vs o4 Mini compared — price per token, context window, multimodality, openness and which to choose. Full 2026 breakdown.
Fugu Ultra v2 — full profile › · o4 Mini — full profile ›
Prices & specs refreshed from live data · olud.ai
Open-model prices = cheapest provider via OpenRouter; official maker rates may be higher.
$30 /M outputManaged API (no infra to run)
$4.4 /M outputManaged API (no infra to run)
Fugu Ultra v2 vs o4 Mini specs
| Spec | Fugu Ultra v2 | o4 Mini | Winner |
|---|---|---|---|
| Maker | Sakana AI | OpenAI | – |
| Type | Proprietary | Proprietary | – |
| Context window | 1M tokens | 200K tokens | SAFugu Ultra v2 |
| Input price | $5/M | $1.1/M | |
| Output price | $30/M | $4.4/M | |
| Vision / multimodal | Yes | Yes | = Tie |
| Tool / function calling | Yes | Yes | = Tie |
| Self-hostable | No (API only) | No (API only) | – |
| License | Proprietary | Proprietary | – |
Price gap & when to choose each
o4 Mini is ~6.8× cheaper than Fugu Ultra v2 on output tokens ($4.4 vs $30 per M tokens).
- You want frontier performance through a managed API
- You need the longer 1M context window
- You value reliability & ecosystem
- You don't want to manage infrastructure
- You want frontier performance through a managed API
- You want the lower output price
- You value reliability & ecosystem
- You don't want to manage infrastructure
Feature comparison
| Capability | Fugu Ultra v2 | o4 Mini |
|---|---|---|
| Open weights (downloadable) | ✗ | ✗ |
| Self-hostable | ✗ | ✗ |
| Runs fully offline | ✗ | ✗ |
| Vision / multimodal | ✓ | ✓ |
| Tool / function calling | ✓ | ✓ |
| 1M+ context window | ✓ | ✗ |
Benchmarks: Fugu Ultra v2 vs o4 Mini
Independent benchmark scores measured by Artificial Analysis. Higher is better (except latency).
Benchmark data by Artificial Analysis.
How Fugu Ultra v2 and o4 Mini score
| Criterion | Fugu Ultra v2 | o4 Mini |
|---|---|---|
| Cost-efficiency | 3.0 | 4.0 |
| Context window | 5.0 | 4.0 |
| Openness | 1.5 | 1.5 |
| Self-hosting | 1.0 | 1.0 |
| Multimodality | 5.0 | 5.0 |
Scores come from live data — output price (cost), context length, open vs closed weights (openness & self-hosting) and vision/tool support (multimodality). Raw task quality isn't scored here; it depends on your benchmark — see the verdict.
What each model is
Fugu Ultra v2 Paid
Fugu Ultra v2 is the higher-performance model in Sakana AI's Fugu family. Rather than a single monolithic model, Fugu is a learned multi-agent orchestration system: a language model trained to...
o4 Mini Paid
OpenAI o4-mini is a compact reasoning model in the o-series, optimized for fast, cost-efficient performance while retaining strong multimodal and agentic capabilities. It supports tool use and demonstrates competitive reasoning...
Other models in these families
These variants are tracked but not compared here — one page per family keeps the comparison readable.
Frequently asked questions
Fugu Ultra v2 vs o4 Mini — which is cheaper?
o4 Mini is cheaper on output ($4.4/M vs $30/M).
Which has the larger context window?
Fugu Ultra v2 offers the larger context window (1M tokens).
Fugu Ultra v2 vs o4 Mini — which should I pick in 2026?
Choose o4 Mini for the lower output price ($4.4/M vs $30/M). Choose Fugu Ultra v2 if you need the larger 1M context window.
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