SAFugu Ultra Paid vs 
Muse Spark 1.3 Paid
Fugu Ultra vs Muse Spark 1.3 compared — price per token, context window, multimodality, openness and which to choose. Full 2026 breakdown.
Fugu Ultra — full profile › · Muse Spark 1.3 — 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)
$4.25 /M outputManaged API (no infra to run)
Fugu Ultra vs Muse Spark 1.3 specs
| Spec | Fugu Ultra | Muse Spark 1.3 | Winner |
|---|---|---|---|
| Maker | Sakana AI | Meta | – |
| Type | Proprietary | Proprietary | – |
| Context window | 1M tokens | 1M tokens | |
| Input price | $5/M | $1.25/M | |
| Output price | $30/M | $4.25/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
Muse Spark 1.3 is ~7.1× cheaper than Fugu Ultra on output tokens ($4.25 vs $30 per M tokens).
- You want frontier performance through a managed API
- You value reliability & ecosystem
- You don't want to manage infrastructure
- You want frontier performance through a managed API
- You need the longer 1M context window
- You want the lower output price
- You value reliability & ecosystem
- You don't want to manage infrastructure
Feature comparison
| Capability | Fugu Ultra | Muse Spark 1.3 |
|---|---|---|
| Open weights (downloadable) | ✗ | ✗ |
| Self-hostable | ✗ | ✗ |
| Runs fully offline | ✗ | ✗ |
| Vision / multimodal | ✓ | ✓ |
| Tool / function calling | ✓ | ✓ |
| 1M+ context window | ✓ | ✓ |
Benchmarks: Fugu Ultra vs Muse Spark 1.3
Independent benchmark scores measured by Artificial Analysis. Higher is better (except latency).
Benchmark data by Artificial Analysis.
How Fugu Ultra and Muse Spark 1.3 score
| Criterion | Fugu Ultra | Muse Spark 1.3 |
|---|---|---|
| Cost-efficiency | 3.0 | 4.0 |
| Context window | 5.0 | 5.0 |
| 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 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...
Muse Spark 1.3 Paid
Muse Spark 1.3 is a multimodal reasoning model from Meta for long-running agentic, multi-agent, and coding workflows. It is designed to keep track of information across extended tasks, work through...
Frequently asked questions
Fugu Ultra vs Muse Spark 1.3 — which is cheaper?
Muse Spark 1.3 is cheaper on output ($4.25/M vs $30/M).
Which has the larger context window?
Muse Spark 1.3 offers the larger context window (1M tokens).
Fugu Ultra vs Muse Spark 1.3 — which should I pick in 2026?
Choose Muse Spark 1.3 for the lower output price ($4.25/M vs $30/M). It also gives you the larger 1M context window.
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