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© 2026 CompareLLM. Public benchmark data aggregated from Arena Elo, LiveBench, SWE-bench & OpenRouter.

Every score has a dated snapshot.

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  3. Sakana: Fugu Ultra vs GPT-4.5 Orion

Pairwise benchmark snapshot · Aug 17, 2026noindex (thin pair)

Sakana: Fugu Ultra vs GPT-4.5 Orion benchmark

In this head-to-head showdown, Sakana: Fugu Ultra is more budget-friendly at $30/1M per 1M output tokens. Review the complete breakdown below to determine which model best fits your performance and budget requirements.

Executive Comparison Verdict

Bottom Line: Both Sakana: Fugu Ultra and GPT-4.5 Orion present distinct architectural strengths. Compare the verified benchmark matrix below to choose the model tailored to your specific application requirements.
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sakana
Sakana: Fugu Ultra

Auto-discovered from OpenRouter (sakana/fugu-ultra). Preview until a second source matches.

$30/1M out
OpenAI
GPT-4.5 Orion

OpenAI largest dense non-reasoning model with expansive world knowledge and reduced hallucinations.

Elo 1,540$150/1M out
Top Rival Showdowns for Sakana: Fugu Ultra
All Matchups
Compare vs:vs Claude Opus 4.5vs GPT-5vs Gemini 3 Provs Grok 4.6vs DeepSeek V4 Pro
Preference Leader

No shared data

Single model data

Throughput Leader

No shared data

No latency data

Value per Dollar Leader

Sakana: Fugu Ultra

$30 / 1M output

Capability Percentiles

Relative percentile scores computed across all active models in the benchmark catalog.

Capability Matchup Radar

Multi-Dimensional Capability Radar

Each spoke is a skill. Farther from the center is better (0–100th percentile). Tap any dot to inspect details.

Tap any node to inspect
Percentile 0–100
Dimensional AdvantageGPT-4.5 Orion 4/6
Head-to-Head Comparison

Overall Matchup Breakdown

Category wins across reasoning intelligence, generation speed, and token cost.

Sakana: Fugu Ultra (3)vsGPT-4.5 Orion (7)
Sakana: Fugu Ultra: 3W (30%)Overall: GPT-4.5 OrionGPT-4.5 Orion: 7W (70%)
← Sakana: Fugu UltraGPT-4.5 Orion →
GPT-4.5 Orion (5/5)

Intelligence & Reasoning

Preference Elo, Coding proficiency, SWE-bench & LiveBench accuracy

Preference Elo
—vs1,540
Coding Elo
—vs1,520
SWE-bench
—vs71%
LiveBench
—vs68.5%
GPQA Diamond
—vs84%
Sakana: Fugu Ultra: 0WGPT-4.5 Orion: 5W
GPT-4.5 Orion (2/2)

Speed & Latency

Generation throughput and time to first token responsiveness

Output speed
—vs60 tok/s
Time to first token
—vs350 ms
Sakana: Fugu Ultra: 0WGPT-4.5 Orion: 2W
Sakana: Fugu Ultra (3/3)

Pricing & Capacity

Cost per million tokens and max context window length

Output price
$30/1Mvs$150/1M
Input price
$5/1Mvs$75/1M
Context window
1Mvs128k
Sakana: Fugu Ultra: 3WGPT-4.5 Orion: 0W

Side-by-Side Benchmark Matrix

Preference Elo
Sakana: Fugu Ultra—
GPT-4.5 Orion1,540
lmarena · Aug 17, 2026
Coding Elo
Sakana: Fugu Ultra—
GPT-4.5 Orion1,520
lmarena · Aug 17, 2026
LiveBench
Sakana: Fugu Ultra—
GPT-4.5 Orion68.5%
livebench · Aug 17, 2026
SWE-bench
Sakana: Fugu Ultra—
GPT-4.5 Orion71%
swebench · Aug 17, 2026
GPQA Diamond
Sakana: Fugu Ultra—
GPT-4.5 Orion84%
seed-bootstrap · Aug 1, 2026
Time to first token
Sakana: Fugu Ultra—
GPT-4.5 Orion350 ms
seed-bootstrap · Aug 1, 2026
Output speed
Sakana: Fugu Ultra—
GPT-4.5 Orion60 tok/s
seed-bootstrap · Aug 1, 2026
Input priceSakana: Fugu Ultra (+$70/1M)
Sakana: Fugu Ultra$5/1M
openrouter · Aug 17, 2026
GPT-4.5 Orion$75/1M
seed-bootstrap · Aug 1, 2026
Output priceSakana: Fugu Ultra (+$120/1M)
Sakana: Fugu Ultra$30/1M
openrouter · Aug 17, 2026
GPT-4.5 Orion$150/1M
seed-bootstrap · Aug 1, 2026
Context windowSakana: Fugu Ultra (+872k)
Sakana: Fugu Ultra1M
openrouter · Aug 17, 2026
GPT-4.5 Orion128k
seed-bootstrap · Aug 1, 2026
BenchmarkSakana: Fugu UltraGPT-4.5 OrionAdvantage Delta
Preference Elo—
1,540
lmarena · Aug 17, 2026
—
Coding Elo—
1,520
lmarena · Aug 17, 2026
—
LiveBench—
68.5%
livebench · Aug 17, 2026
—
SWE-bench—
71%
swebench · Aug 17, 2026
—
GPQA Diamond—
84%
seed-bootstrap · Aug 1, 2026
—
Time to first token—
350 ms
seed-bootstrap · Aug 1, 2026
—
Output speed—
60 tok/s
seed-bootstrap · Aug 1, 2026
—
Input price
$5/1M
openrouter · Aug 17, 2026
$75/1M
seed-bootstrap · Aug 1, 2026
Sakana: Fugu Ultra (+$70/1M)
Output price
$30/1M
openrouter · Aug 17, 2026
$150/1M
seed-bootstrap · Aug 1, 2026
Sakana: Fugu Ultra (+$120/1M)
Context window
1M
openrouter · Aug 17, 2026
128k
seed-bootstrap · Aug 1, 2026
Sakana: Fugu Ultra (+872k)
Interactive Simulator (USD)

Workload Cost & Savings Calculator

Simulate monthly production API costs in USD (US Dollar).

Save up to 87% with Sakana: Fugu Ultra
Monthly Volume50M tokens/mo
Quick Presets:
Token Ratio (In vs Out)70% In / 30% Out
RAG / Search (10% out)Coding / Chat (50% out)
Sakana: Fugu Ultra$625.00 / mo
In: $175Out: $450
GPT-4.5 Orion$4,875.00 / mo
In: $2,625Out: $2,250
Estimated Cost Delta

Sakana: Fugu Ultra is estimated to save $4,250.00/month ($51,000/year).

Based on 50M tokens (30% gen)

Key Selection Recommendations

  • 1
    Sakana: Fugu Ultra:Pick Sakana: Fugu Ultra when you are optimizing output cost.
  • 2
    Sakana: Fugu Ultra:Pick Sakana: Fugu Ultra for million-token RAG or long-document jobs.

Recommended Workload Routing

Repo / coding agentsinsufficient data

Need SWE-bench on both sides.

High-volume chatSakana: Fugu Ultra

Lower output list price ($30/1M).

Voice / low-latency UIinsufficient data

Need TTFT on both sides.

Long-document RAGSakana: Fugu Ultra

Larger window (1M).

Screenshots / visionGPT-4.5 Orion

GPT-4.5 Orion is the side marked multimodal in the catalog.

Target WorkloadRecommended PickEvaluation Rationale
Repo / coding agentsinsufficient dataNeed SWE-bench on both sides.
High-volume chatSakana: Fugu UltraLower output list price ($30/1M).
Voice / low-latency UIinsufficient dataNeed TTFT on both sides.
Long-document RAGSakana: Fugu UltraLarger window (1M).
Screenshots / visionGPT-4.5 OrionGPT-4.5 Orion is the side marked multimodal in the catalog.
Community Sentiment

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CompareLLM Matrix

Verified head-to-head card

LIVE
VS
sakana

Sakana: Fugu Ultra

Elo n/a
LiveBench—
SWE-bench—
Speed—
Output cost$30/1M
OpenAI

GPT-4.5 Orion

Elo 1,540
LiveBench68.5%
SWE-bench71%
Speed60 tok/s
Output cost$150/1M

Frequently Asked Questions

Which is better overall, Sakana: Fugu Ultra or GPT-4.5 Orion?
We do not have preference Elo for both models, so we do not declare an overall winner. Compare the metrics that exist.
Which is better at coding, Sakana: Fugu Ultra or GPT-4.5 Orion?
SWE-bench is missing for at least one model, so we do not rank coding from a single number.
Which is cheaper to run in production?
Sakana: Fugu Ultra output tokens are $30/1M versus $150/1M. Input prices and retry rates still move the real bill.
Which is faster, Sakana: Fugu Ultra or GPT-4.5 Orion?
We do not have TTFT for both models.
Which has the larger context window?
Sakana: Fugu Ultra accepts 1M tokens versus 128k.
Can I self-host either model?
Neither model is marked open-weights here. You are comparing hosted APIs.
Are these scores from CompareLLM’s own evals?
No. V1 aggregates public leaderboards (and optional first-party latency pings). Each cell names its source and date. Read /methodology.
What does preference Elo mean on this page?
Preference Elo is a crowd vote from LMArena / Arena. People see two hidden answers and pick the one they like more. The model that wins more often gets a higher Elo. That means people preferred it — not that it passed a school test. It is not SWE-bench, not accuracy, and not a number we invent. Sakana: Fugu Ultra and GPT-4.5 Orion Elo cells are dated snapshots from the named source — we do not compute Arena ourselves.

Similar Head-to-Head Comparisons

All Sakana: Fugu Ultra matchups →|All GPT-4.5 Orion matchups →
GPT-4.5 Orion vs OpenAI: o1 (previous gpt-flagship)GPT-4.5 Orion vs GPT-5 (next gpt-flagship)GPT-5.6 Sol vs GPT-4.5 OrionGPT-5.6 Terra vs GPT-4.5 OrionGPT-5 mini vs GPT-4.5 OrionGPT-4o vs GPT-4.5 Orion