AI Models · Paid vs Paid

SAFugu Ultra Paid vs PEPerceptron Mk1.5 Paid

Fugu Ultra vs Perceptron Mk1.5 compared — price per token, context window, multimodality, openness and which to choose. Full 2026 breakdown.

Fugu Ultra — full profile ›  ·  Perceptron Mk1.5 — full profile ›

Prices & specs refreshed from live data · olud.ai

Open-model prices = cheapest provider via OpenRouter; official maker rates may be higher.

SAFugu UltraPaidSakana AI
$5 /M input
$30 /M outputManaged API (no infra to run)
TypeProprietary
Context window1M tokens
MultimodalYes
Self-hostNo
PEPerceptron Mk1.5PaidPerceptron
$0.15 /M input
$1.5 /M outputManaged API (no infra to run)
TypeProprietary
Context window37K tokens
MultimodalYes
Self-hostNo
Choose Perceptron Mk1.5 for the lower output price ($1.5/M vs $30/M). Choose Fugu Ultra if you need the larger 1M context window.

Fugu Ultra vs Perceptron Mk1.5 specs

SpecFugu UltraPerceptron Mk1.5Winner
MakerSakana AIPerceptron–
TypeProprietaryProprietary–
Context window1M tokens37K tokensSAFugu Ultra
Input price$5/M$0.15/MPEPerceptron Mk1.5
Output price$30/M$1.5/MPEPerceptron Mk1.5
Vision / multimodalYesYes= Tie
Tool / function callingYesYes= Tie
Self-hostableNo (API only)No (API only)–
LicenseProprietaryProprietary–

Price gap & when to choose each

20×cheaper per output token

Perceptron Mk1.5 is ~20× cheaper than Fugu Ultra on output tokens ($1.5 vs $30 per M tokens).

SAChoose Fugu Ultra if…
  • 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
PEChoose Perceptron Mk1.5 if…
  • 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

CapabilityFugu UltraPerceptron Mk1.5
Open weights (downloadable)✗✗
Self-hostable✗✗
Runs fully offline✗✗
Vision / multimodal✓✓
Tool / function calling✓✓
1M+ context window✓✗

How Fugu Ultra and Perceptron Mk1.5 score

🤝 Neck and neck on these criteria (3.1 vs 2.9 / 5).
CriterionFugu UltraPerceptron Mk1.5
Cost-efficiency3.04.5
Context window5.02.5
Openness1.51.5
Self-hosting1.01.0
Multimodality5.05.0

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

Sakana AI · Proprietary

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...

Perceptron Mk1.5 Paid

Perceptron · Proprietary

Perceptron Mk1.5 is Perceptron's embodied reasoning model for physical agents. It accepts text, image, video, and audio input, and answers with text plus optional structured annotations: points, boxes, polygons, tracks,...

Frequently asked questions

Fugu Ultra vs Perceptron Mk1.5 — which is cheaper?

Perceptron Mk1.5 is cheaper on output ($1.5/M vs $30/M).

Which has the larger context window?

Fugu Ultra offers the larger context window (1M tokens).

Fugu Ultra vs Perceptron Mk1.5 — which should I pick in 2026?

Choose Perceptron Mk1.5 for the lower output price ($1.5/M vs $30/M). Choose Fugu Ultra if you need the larger 1M context window.

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