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Fugu Ultra v2 vs Jev Router

Fugu Ultra v2

sakana

40#242
vs
Jev Router

typesafe

40#212
Signal-by-Signal Comparison
SignalFugu Ultra v2DeltaJev Router
Capabilities
100
+17
83
Pricing
70
-1000030
1000100
Context window size
95
--
95
Recency
100
--
100
Output Capacity
82
+5
77
Overall Result
2 wins
of 5
1 wins
Fugu Ultra v2 wins 2 of 5 signals

Score History

Score History (8 data points)
Fugu Ultra v2Jev Router
Fugu Ultra v2

40

current score

Leader

Tied

right now

Jev Router

40

current score

LMMarketCap.com
Interactive Price Comparison
100Kcalls/month
1,000tokens (~1,333 chars)
500tokens (~667 chars)

Fugu Ultra v2

sakana

Per request$0.020000
Daily$66.67
Monthly$2000.00
Annual$24000.00

Jev Router

typesafe

Best Value
Per request$0.000000
Daily$0.00
Monthly$0.00
Annual$0.00

Jev Router saves you $2000.00/month

That's $24000.00/year compared to Fugu Ultra v2 at your current usage level of 100K calls/month.

100% cheaper
Choose Jev Router for cost optimization

Fugu Ultra v2 pricing:
Input:$5.00/M tokens
Output:$30.00/M tokens
Jev Router pricing:
Input:$0.00/M tokens
Output:$0.00/M tokens
Tie
Fugu Ultra v2

sakana

40

Composite Score

Tie
Jev Router

typesafe

40

Composite Score

Signal-by-Signal Comparison
MetricFugu Ultra v2Jev RouterWinner
Overall Score
40
40
--
Rank#242#212
Jev Router
Quality Rank#242#212
Jev Router
Adoption Rank#242#212
Jev Router
Parameters------
Context Window1000K1000K--
Pricing$5.00/$30.00/MFree--
Signal Scores
Capabilities
100
83
Fugu Ultra v2
Pricing
70
1000100
Jev Router
Context window size
95
95
Fugu Ultra v2
Recency
100
100
Fugu Ultra v2
Output Capacity
82
77
Fugu Ultra v2
Benchmark Interpretation

Our score (0-100) is driven by benchmark performance (90%) from Arena Elo ratings, MMLU, GPQA, HumanEval, SWE-bench, and 15+ standardized evaluations. Capabilities and context window serve as tiebreakers (10%). Learn more about our methodology.

Fugu Ultra v2Entry Level

Scores 40/100 (rank #242), placing it in the top 17% of all 290 models tracked.

Raw Quality0/100
Cost Efficiency0/100
Speed0/100
Jev RouterEntry Level

Scores 40/100 (rank #212), placing it in the top 27% of all 290 models tracked.

Raw Quality0/100
Cost Efficiency0/100
Speed0/100

With only a 0-point gap, these models are in the same performance tier. The practical difference in output quality is minimal - your choice should depend on pricing, latency requirements, and specific feature needs.

When to Use Each Model

Choose Fugu Ultra v2 when you need:

  • Step-by-step reasoning and chain-of-thought problem solving

Choose Jev Router when you need:

  • High-volume production workloads where API costs must be minimized
  • Step-by-step reasoning and chain-of-thought problem solving
Cost-Performance Analysis
Fugu Ultra v2
Input cost$5.00/M tokens
Output cost$30.00/M tokens
Cost per quality point$0.875
Est. monthly (1M tokens/day)$525.00
Jev Router
Input cost$0.00/M tokens
Output cost$0.00/M tokens
Cost per quality point$0.000
Est. monthly (1M tokens/day)$0.00

Both models are priced similarly, so the decision comes down to quality and features rather than cost.

Latency & Speed
Fugu Ultra v2Faster
Speed score0/100
Jev Router
Speed score0/100

Both models have comparable response speeds. For most applications, the latency difference is negligible.

When latency matters most: Interactive chatbots, IDE code completion, real-time translation, and user-facing applications where response time directly impacts experience. For batch processing, background summarization, or offline analysis, latency is less critical.

Example Use Cases

Code generation & review

Based on overall model capabilities and architecture for coding tasks like generating functions, debugging, and refactoring

Fugu Ultra v2

Customer support chatbot

Suitable for user-facing chat with competitive response times. Jev Router also offers lower per-token costs for high-volume support

Fugu Ultra v2

Long document analysis

Larger context window (1000K tokens) can process longer documents, contracts, and research papers in a single pass

Fugu Ultra v2

Batch data extraction

Lower output pricing ($0.00/M) reduces costs when processing thousands of records daily

Jev Router

Creative writing & content

Higher overall composite score (40/100) correlates with better nuance, coherence, and style in long-form content

Fugu Ultra v2

Image understanding & OCR

Supports vision input - can analyze screenshots, diagrams, photos, and scanned documents directly

Fugu Ultra v2
Which Should You Choose?
Our recommendation:
Fugu Ultra v2

Fugu Ultra v2 and Jev Router are extremely close in overall performance (only 0 points apart). Your best choice depends entirely on which specific strengths matter most for your use case.

Fugu Ultra v2
Recommended

by sakana

  • Choose for Quality - Marginally better benchmark scores; both are excellent
  • Choose for Reliability - Higher uptime and faster response speeds
  • Choose for Prototyping - Stronger community support and better developer experience
  • Choose for Production - Wider enterprise adoption and proven at scale

by typesafe

  • Choose for Cost - 100% lower pricing; better value at scale
Capability Comparison
CapabilityFugu Ultra v2Jev Router
Vision (Image Input)
Function Calling
Streaming
JSON Mode
Reasoning
Web Searchdiffers
Image Output
Monthly Cost Calculator
1,000tokens (600 in / 400 out)
100requests/day (3,000/month)

Fugu Ultra v2

sakana

$45.00
estimated monthly cost

Jev Router

typesafe

Best Value
$0.000000
estimated monthly cost

Jev Router saves you $45.00/month

That's 100% cheaper than Fugu Ultra v2 at 1,000 tokens/request and 100 requests/day.

Assumes 60% input / 40% output token ratio per request. Actual costs may vary based on your usage pattern.

Parameters & Context
ParameterFugu Ultra v2Jev Router
Context Window1M1M
Max Output Tokens128,00065,536
Open SourceNoNo
CreatedSep 11, 2026Sep 25, 2026
Last updated: 9m ago

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