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Kimi K2.6 vs Fugu Ultra

Kimi K2.6

Moonshot AI

75#67
vs
Fugu Ultra

sakana

40#172
Signal-by-Signal Comparison
SignalKimi K2.6DeltaFugu Ultra
Capabilities
83
-17
100
Benchmarks
75
+75
0
Pricing
97
+27
70
Context window size
77
-8
86
Recency
100
--
100
Output Capacity
90
+5
85
Overall Result
3 wins
of 6
2 wins
Kimi K2.6 wins 3 of 6 signals

Score History

Score History (11 data points)
Kimi K2.6Fugu Ultra
Kimi K2.6

75.4

current score

Leader

Kimi K2.6

right now

Fugu Ultra

40

current score

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

Kimi K2.6

Moonshot AI

Best Value
Per request$0.002365
Daily$7.88
Monthly$236.50
Annual$2838.00

Fugu Ultra

sakana

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

Kimi K2.6 saves you $1763.50/month

That's $21162.00/year compared to Fugu Ultra at your current usage level of 100K calls/month.

88% cheaper
Choose Kimi K2.6 for cost optimization

Kimi K2.6 pricing:
Input:$0.66/M tokens
Output:$3.41/M tokens
Fugu Ultra pricing:
Input:$5.00/M tokens
Output:$30.00/M tokens
Winner
Kimi K2.6

Moonshot AI

75

Composite Score

Fugu Ultra

sakana

40

Composite Score

Signal-by-Signal Comparison
MetricKimi K2.6Fugu UltraWinner
Overall Score
75
40
Kimi K2.6
Rank#67#172
Kimi K2.6
Quality Rank#67#172
Kimi K2.6
Adoption Rank#67#172
Kimi K2.6
Parameters------
Context Window262K1000K
Fugu Ultra
Pricing$0.66/$3.41/M$5.00/$30.00/M--
Signal Scores
Capabilities
83
100
Fugu Ultra
Benchmarks
75
--
Kimi K2.6
Pricing
97
70
Kimi K2.6
Context window size
77
86
Fugu Ultra
Recency
100
100
Kimi K2.6
Output Capacity
90
85
Kimi K2.6
Benchmark Head-to-Head(1 benchmarks)
Kimi K2.6: 0Fugu Ultra: 0
Kimi K2.6
Fugu Ultra
Normalized 0-100%
Arena Elo
1461-
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.

Kimi K2.6Strong Performer

Scores 75/100 (rank #67), placing it in the top 77% of all 290 models tracked.

Raw Quality0/100
Cost Efficiency0/100
Speed0/100
Fugu UltraEntry Level

Scores 40/100 (rank #172), placing it in the top 41% of all 290 models tracked.

Raw Quality0/100
Cost Efficiency0/100
Speed0/100

Kimi K2.6 has a 35-point advantage, which typically translates to noticeably stronger performance on complex reasoning, code generation, and multi-step tasks.

When to Use Each Model

Choose Kimi K2.6 when you need:

  • High-volume production workloads where API costs must be minimized
  • Step-by-step reasoning and chain-of-thought problem solving
  • Self-hosted deployments where you need full control over the model

Choose Fugu Ultra when you need:

  • Processing long documents or large codebases (1000K token context)
  • Step-by-step reasoning and chain-of-thought problem solving
Cost-Performance Analysis
Kimi K2.6Best Value
Input cost$0.66/M tokens
Output cost$3.41/M tokens
Cost per quality point$0.054
Est. monthly (1M tokens/day)$61.05
Fugu Ultra
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

Kimi K2.6 offers 88% better value per quality point. At 1M tokens/day, you'd spend $61.05/month with Kimi K2.6 vs $525.00/month with Fugu Ultra - a $463.95 monthly difference.

Latency & Speed
Kimi K2.6Faster
Speed score0/100
Fugu Ultra
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

Kimi K2.6

Customer support chatbot

Suitable for user-facing chat with competitive response times. Kimi K2.6 also offers lower per-token costs for high-volume support

Kimi K2.6

Long document analysis

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

Fugu Ultra

Batch data extraction

Lower output pricing ($3.41/M) reduces costs when processing thousands of records daily

Kimi K2.6

Creative writing & content

Higher overall composite score (75/100) correlates with better nuance, coherence, and style in long-form content

Kimi K2.6

Image understanding & OCR

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

Kimi K2.6
Which Should You Choose?
Our recommendation:
Kimi K2.6

Kimi K2.6 clearly outperforms Fugu Ultra with a significant 35.400000000000006-point lead. For most general use cases, Kimi K2.6 is the stronger choice. However, Fugu Ultra may still excel in niche scenarios.

Kimi K2.6
Recommended

by Moonshot AI

  • Choose for Quality - Marginally better benchmark scores; both are excellent
  • Choose for Cost - 88% lower pricing; better value at scale
  • 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 sakana

Consider for specialized use cases.

Capability Comparison
CapabilityKimi K2.6Fugu Ultra
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)

Kimi K2.6

Moonshot AI

Best Value
$5.28
estimated monthly cost

Fugu Ultra

sakana

$45.00
estimated monthly cost

Kimi K2.6 saves you $39.72/month

That's 88% cheaper than Fugu Ultra 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
ParameterKimi K2.6Fugu Ultra
Context Window262K1M
Max Output Tokens262,144128,000
Open SourceYesNo
CreatedApr 20, 2026Jun 24, 2026
Last updated: 46m ago

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Kimi K2.6 vs Fugu Ultra (2026) | LM Market Cap