KAT-Coder-Pro V2.5 is $4.26 cheaper per 1M input tokens (85.2% lower; 6.76x difference).
API cost decision in 10 seconds
KAT-Coder-Pro V2.5 vs Fugu Ultra
Pick KAT-Coder-Pro V2.5 for lower cost; pick Fugu Ultra only if the larger context window matters more.
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Data confirmed:
Prices normalized to USD per 1M tokens
Sample workload: 1M input + 500K output
Budget verdict
Pick KAT-Coder-Pro V2.5 for lower cost; pick Fugu Ultra only if the larger context window matters more.
On the standard 1M input plus 500K output workload, KAT-Coder-Pro V2.5 is estimated at $2.22 vs $20 for Fugu Ultra, saving $17.78 (88.9% lower).
Cost-first pickKAT-Coder-Pro V2.5
Context-first pickFugu Ultra
Sample savings$17.7888.9%
10x traffic gap$177.8
Fugu Ultra has more context, but KAT-Coder-Pro V2.5 saves $17.78 on the standard workload. At 10x that traffic, the same price gap is about $177.8. Use the calculator below to replace the sample workload with your own token volume.
Cost sensitivity
Workload Sensitivity
KAT-Coder-Pro V2.5 stays cheaper across input-heavy, balanced, and output-heavy sample workloads.
| Workload shape | Token mix | Better pick | KAT-Coder-Pro V2.5 | Fugu Ultra |
|---|---|---|---|---|
| Input-heavy / RAG | 5M input + 500K output | KAT-Coder-Pro V2.5 | $5.18 | $40 |
| Balanced workload | 1M input + 1M output | KAT-Coder-Pro V2.5 | $3.7 | $35 |
| Output-heavy chatbot | 1M input + 5M output | KAT-Coder-Pro V2.5 | $15.54 | $155 |
KAT-Coder-Pro V2.5 is $27.04 cheaper per 1M output tokens (90.1% lower; 10.1x difference).
Fugu Ultra has 744K more context (3.91x larger).
KAT-Coder-Pro V2.5 is $17.78 cheaper on the standard workload (88.9% lower).
Estimate your workload cost
Your Workload Cost
This estimate uses normalized public API pricing per 1M tokens. It is a planning aid, not a billing quote. Verify provider pricing, limits, and terms before production use.
Quick Decision
KAT-Coder-Pro V2.5 has the lower input price; KAT-Coder-Pro V2.5 has the lower output price; Fugu Ultra offers the larger context window. For the 1M input plus 500K output sample, KAT-Coder-Pro V2.5 is cheaper for the standard workload.
For a 1M input token plus 500K output token workload, the estimated API cost is $2.22 for KAT-Coder-Pro V2.5 and $20 for Fugu Ultra.
Choose KAT-Coder-Pro V2.5 when you care most about lower input-token price, and lower output-token price.
Choose Fugu Ultra when you care most about larger context window.
- On the standard 1M input plus 500K output workload, KAT-Coder-Pro V2.5 is estimated at $2.22 vs $20 for Fugu Ultra, saving $17.78 (88.9% lower).
- KAT-Coder-Pro V2.5 is $17.78 cheaper on the standard workload (88.9% lower).
- KAT-Coder-Pro V2.5 is $4.26 cheaper per 1M input tokens (85.2% lower; 6.76x difference).
- KAT-Coder-Pro V2.5 is $27.04 cheaper per 1M output tokens (90.1% lower; 10.1x difference).
- Fugu Ultra has 744K more context (3.91x larger).
| Feature | KAT-Coder-Pro V2.5 (Kwaipilot) | Fugu Ultra (Sakana) |
|---|---|---|
| Input Price prompt tokens per 1M | $0.74 | $5 |
| Completion Price per 1M tokens | $2.96 | $30 |
| Sample Workload Cost 1M input + 500K output | $2.22 | $20 |
| Context Window | 256K | 1M |
| Release Date |
Use-Case Decision Matrix
| Use case | Better pick | Why |
|---|---|---|
| Budget-constrained production | KAT-Coder-Pro V2.5 | On the standard 1M input plus 500K output workload, KAT-Coder-Pro V2.5 is estimated at $2.22 vs $20 for Fugu Ultra, saving $17.78 (88.9% lower). |
| High-volume input processing | KAT-Coder-Pro V2.5 | Lower prompt-token price matters most when prompts, retrieved passages, or documents dominate the bill. |
| Long responses and chatbots | KAT-Coder-Pro V2.5 | Lower output-token price matters most when assistants generate many completion tokens. |
| RAG or long-document work | Fugu Ultra | A larger context window leaves more room for retrieved passages, conversation history, or source files. |
Related Alternatives
- KAT-Coder-Air V2.5 can replace KAT-Coder-Pro V2.5 when lower sample workload cost matters most: $0.45.
- KAT-Coder-Pro V2 can replace KAT-Coder-Pro V2.5 when lower sample workload cost matters most: $0.9.
- Sakana Namazu can replace Fugu Ultra when lower sample workload cost matters most: $2.95.
- Grok 4.20 Multi-Agent offers 2M context with $2.5 sample workload cost.
- Grok 4.20 offers 2M context with $2.5 sample workload cost.
- DeepSeek V4 Flash 0731 offers 1.31M context with $0.17 sample workload cost.
- DeepSeek V4 Flash Latest offers 1.31M context with $0.11 sample workload cost.
- DeepSeek V4 Flash 0731 · DeepSeek · #1
- MiMo-V2.5 · Xiaomi · #2
- Hy3 · Tencent · #3
- Ox Alpha · stealth · #4
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