Claude Fable Latest vs Fugu Ultra
| Signal | Claude Fable Latest | Delta | Fugu Ultra |
|---|---|---|---|
Capabilities | 100 | -- | |
Pricing | 50 | -20 | |
Context window size | 95 | -- | |
Recency | 100 | -- | |
Output Capacity | 85 | -- | |
| Overall Result | 0 wins | of 5 | 1 wins |
Score History
40
current score
Tied
right now
40
current score
Claude Fable Latest
~anthropic
Fugu Ultra
sakana
Fugu Ultra saves you $1500.00/month
That's $18000.00/year compared to Claude Fable Latest at your current usage level of 100K calls/month.
| Metric | Claude Fable Latest | Fugu Ultra | Winner |
|---|---|---|---|
| Overall Score | 40 | 40 | -- |
| Rank | #254 | #252 | Fugu Ultra |
| Quality Rank | #254 | #252 | Fugu Ultra |
| Adoption Rank | #254 | #252 | Fugu Ultra |
| Parameters | -- | -- | -- |
| Context Window | 1000K | 1000K | -- |
| Pricing | $10.00/$50.00/M | $5.00/$30.00/M | -- |
| Signal Scores | |||
| Capabilities | 100 | 100 | Claude Fable Latest |
| Pricing | 50 | 70 | Fugu Ultra |
| Context window size | 95 | 95 | Claude Fable Latest |
| Recency | 100 | 100 | Claude Fable Latest |
| Output Capacity | 85 | 85 | Claude Fable Latest |
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.
Scores 40/100 (rank #254), placing it in the top 13% of all 290 models tracked.
Scores 40/100 (rank #252), placing it in the top 13% of all 290 models tracked.
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.
Choose Claude Fable Latest when you need:
- Step-by-step reasoning and chain-of-thought problem solving
Choose Fugu Ultra when you need:
- High-volume production workloads where API costs must be minimized
- Step-by-step reasoning and chain-of-thought problem solving
Fugu Ultra offers 42% better value per quality point. At 1M tokens/day, you'd spend $525.00/month with Fugu Ultra vs $900.00/month with Claude Fable Latest - a $375.00 monthly difference.
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.
Code generation & review
Based on overall model capabilities and architecture for coding tasks like generating functions, debugging, and refactoring
Customer support chatbot
Suitable for user-facing chat with competitive response times. Fugu Ultra also offers lower per-token costs for high-volume support
Long document analysis
Larger context window (1000K tokens) can process longer documents, contracts, and research papers in a single pass
Batch data extraction
Lower output pricing ($30.00/M) reduces costs when processing thousands of records daily
Creative writing & content
Higher overall composite score (40/100) correlates with better nuance, coherence, and style in long-form content
Image understanding & OCR
Supports vision input - can analyze screenshots, diagrams, photos, and scanned documents directly
Claude Fable Latest and Fugu Ultra 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.
By Use Case
Best for Quality
Claude Fable Latest
Marginally better benchmark scores; both are excellent
Best for Cost
Fugu Ultra
42% lower pricing; better value at scale
Best for Reliability
Claude Fable Latest
Higher uptime and faster response speeds
Best for Prototyping
Claude Fable Latest
Stronger community support and better developer experience
Best for Production
Claude Fable Latest
Wider enterprise adoption and proven at scale
by ~anthropic
- 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
| Capability | Claude Fable Latest | Fugu Ultra |
|---|---|---|
| Vision (Image Input) | ||
| Function Calling | ||
| Streaming | ||
| JSON Mode | ||
| Reasoning | ||
| Web Search | ||
| Image Output |
Claude Fable Latest
~anthropic
Fugu Ultra
sakana
Fugu Ultra saves you $33.00/month
That's 42% cheaper than Claude Fable Latest 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.
| Parameter | Claude Fable Latest | Fugu Ultra |
|---|---|---|
| Context Window | 1M | 1M |
| Max Output Tokens | 128,000 | 128,000 |
| Open Source | No | No |
| Created | Jun 9, 2026 | Jun 24, 2026 |