SAFugu Ultra v2 Paid vs 
Muse Spark 1.2 Contributor Paid
Fugu Ultra v2 vs Muse Spark 1.2 Contributor compared — price per token, context window, multimodality, openness and which to choose. Full 2026 breakdown.
Fugu Ultra v2 — full profile › · Muse Spark 1.2 Contributor — 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)
$0.2 /M outputManaged API (no infra to run)
Fugu Ultra v2 vs Muse Spark 1.2 Contributor specs
| Spec | Fugu Ultra v2 | Muse Spark 1.2 Contributor | Winner |
|---|---|---|---|
| Maker | Sakana AI | Meta | – |
| Type | Proprietary | Proprietary | – |
| Context window | 1M tokens | 1M tokens | |
| Input price | $5/M | $0.1/M | |
| Output price | $30/M | $0.2/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 1.2 Contributor is ~150× cheaper than Fugu Ultra v2 on output tokens ($0.2 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 v2 | Muse Spark 1.2 Contributor |
|---|---|---|
| Open weights (downloadable) | ✗ | ✗ |
| Self-hostable | ✗ | ✗ |
| Runs fully offline | ✗ | ✗ |
| Vision / multimodal | ✓ | ✓ |
| Tool / function calling | ✓ | ✓ |
| 1M+ context window | ✓ | ✓ |
How Fugu Ultra v2 and Muse Spark 1.2 Contributor score
| Criterion | Fugu Ultra v2 | Muse Spark 1.2 Contributor |
|---|---|---|
| Cost-efficiency | 3.0 | 5.0 |
| 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 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...
Muse Spark 1.2 Contributor Paid
Muse Spark 1.2 contributor tier is a reasoning model from Meta designed for developers who want to start building at an even lower cost. It’s meaningfully cheaper than Muse Spark...
Frequently asked questions
Fugu Ultra v2 vs Muse Spark 1.2 Contributor — which is cheaper?
Muse Spark 1.2 Contributor is cheaper on output ($0.2/M vs $30/M).
Which has the larger context window?
Muse Spark 1.2 Contributor offers the larger context window (1M tokens).
Fugu Ultra v2 vs Muse Spark 1.2 Contributor — which should I pick in 2026?
Choose Muse Spark 1.2 Contributor for the lower output price ($0.2/M vs $30/M). It also gives you the larger 1M context window.
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