AI Models · Paid vs Paid

GPT-4 Paid vs SAFugu Ultra v2 Paid

GPT-4 vs Fugu Ultra v2 compared — price per token, context window, multimodality, openness and which to choose. Full 2026 breakdown.

Prices & specs refreshed from live data · olud.ai

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

GPT-4PaidOpenAI
$30 /M input
$60 /M outputManaged API (no infra to run)
TypeProprietary
Context window8K tokens
MultimodalNo
Self-hostNo
SAFugu Ultra v2PaidSakana AI
$5 /M input
$30 /M outputManaged API (no infra to run)
TypeProprietary
Context window1M tokens
MultimodalYes
Self-hostNo
Choose Fugu Ultra v2 for the lower output price ($30/M vs $60/M). It also gives you the larger 1M context window.

GPT-4 vs Fugu Ultra v2 specs

SpecGPT-4Fugu Ultra v2Winner
MakerOpenAISakana AI
TypeProprietaryProprietary
Context window8K tokens1M tokensSAFugu Ultra v2
Input price$30/M$5/MSAFugu Ultra v2
Output price$60/M$30/MSAFugu Ultra v2
Vision / multimodalNoYesSAFugu Ultra v2
Tool / function callingYesYes= Tie
Self-hostableNo (API only)No (API only)
LicenseProprietaryProprietary

Price gap & when to choose each

2.0×cheaper per output token

Fugu Ultra v2 is ~2.0× cheaper than GPT-4 on output tokens ($30 vs $60 per M tokens).

Choose GPT-4 if…
  • You want frontier performance through a managed API
  • You value reliability & ecosystem
  • You don't want to manage infrastructure
SAChoose Fugu Ultra v2 if…
  • 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

CapabilityGPT-4Fugu Ultra v2
Open weights (downloadable)
Self-hostable
Runs fully offline
Vision / multimodal
Tool / function calling
1M+ context window

Benchmarks: GPT-4 vs Fugu Ultra v2

Independent benchmark scores measured by Artificial Analysis. Higher is better (except latency).

GPT-4
Fugu Ultra v2
Intelligence index
6.7
Coding index
13.1
GPQA
34.9%
MMLU-Pro
56.2%
MATH-500
56.8%
IFBench
33.2%
Speed
0 tok/s
Latency
0s
Intelligence per $
0.2

Benchmark data by Artificial Analysis.

How GPT-4 and Fugu Ultra v2 score

🏆 Best value & openness: Fugu Ultra v2 (3.1 vs 2.0 / 5)
CriterionGPT-4Fugu Ultra v2
Cost-efficiency2.03.0
Context window2.05.0
Openness1.51.5
Self-hosting1.01.0
Multimodality3.55.0

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

GPT-4 Paid

OpenAI · Proprietary

OpenAI's flagship model, GPT-4 is a large-scale multimodal language model capable of solving difficult problems with greater accuracy than previous models due to its broader general knowledge and advanced reasoning...

Fugu Ultra v2 Paid

Sakana AI · Proprietary

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...

Frequently asked questions

GPT-4 vs Fugu Ultra v2 — which is cheaper?

Fugu Ultra v2 is cheaper on output ($30/M vs $60/M).

Which has the larger context window?

Fugu Ultra v2 offers the larger context window (1M tokens).

GPT-4 vs Fugu Ultra v2 — which should I pick in 2026?

Choose Fugu Ultra v2 for the lower output price ($30/M vs $60/M). It also gives you the larger 1M context window.

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