SAFugu Ultra Paid vs 
Grok 4.6 Paid
Fugu Ultra vs Grok 4.6 compared — price per token, context window, multimodality, openness and which to choose. Full 2026 breakdown.
Fugu Ultra — full profile › · Grok 4.6 — 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)
$6 /M outputManaged API (no infra to run)
Fugu Ultra vs Grok 4.6 specs
| Spec | Fugu Ultra | Grok 4.6 | Winner |
|---|---|---|---|
| Maker | Sakana AI | xAI | – |
| Type | Proprietary | Proprietary | – |
| Context window | 1M tokens | 500K tokens | SAFugu Ultra |
| Input price | $5/M | $2/M | |
| Output price | $30/M | $6/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
Grok 4.6 is ~5.0× cheaper than Fugu Ultra on output tokens ($6 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 | Grok 4.6 |
|---|---|---|
| Open weights (downloadable) | ✗ | ✗ |
| Self-hostable | ✗ | ✗ |
| Runs fully offline | ✗ | ✗ |
| Vision / multimodal | ✓ | ✓ |
| Tool / function calling | ✓ | ✓ |
| 1M+ context window | ✓ | ✗ |
Benchmarks: Fugu Ultra vs Grok 4.6
Independent benchmark scores measured by Artificial Analysis. Higher is better (except latency).
Benchmark data by Artificial Analysis.
How Fugu Ultra and Grok 4.6 score
| Criterion | Fugu Ultra | Grok 4.6 |
|---|---|---|
| Cost-efficiency | 3.0 | 4.0 |
| Context window | 5.0 | 4.5 |
| 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 Paid
Fugu Ultra 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 route...
Grok 4.6 Paid
Grok 4.6 is SpaceXAI's smartest model with frontier performance on coding, knowledge work, and STEM.
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 vs Grok 4.6 — which is cheaper?
Grok 4.6 is cheaper on output ($6/M vs $30/M).
Which has the larger context window?
Fugu Ultra offers the larger context window (1M tokens).
Fugu Ultra vs Grok 4.6 — which should I pick in 2026?
Choose Grok 4.6 for the lower output price ($6/M vs $30/M). Choose Fugu Ultra if you need the larger 1M context window.
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