KAT-Coder-Pro V2 is $0.68 cheaper per 1M input tokens (69.4% lower; 3.27x difference).
API cost decision in 10 seconds
GLM 5.1 vs KAT-Coder-Pro V2
Pick KAT-Coder-Pro V2 when budget and context both matter.
Pricing data updated:
Prices normalized to USD per 1M tokens
Sample workload: 1M input + 500K output
Budget verdict
Pick KAT-Coder-Pro V2 when budget and context both matter.
On the standard 1M input plus 500K output workload, KAT-Coder-Pro V2 is estimated at $0.9 vs $2.52 for GLM 5.1, saving $1.62 (64.3% lower).
Cost-first pickKAT-Coder-Pro V2
Context-first pickKAT-Coder-Pro V2
Sample savings$1.6264.3%
10x traffic gap$16.2
KAT-Coder-Pro V2 is cheaper on the standard workload and also has the larger context window. At 10x that traffic, the same price gap is about $16.2. Use the calculator below to replace the sample workload with your own token volume.
Cost sensitivity
Workload Sensitivity
KAT-Coder-Pro V2 stays cheaper across input-heavy, balanced, and output-heavy sample workloads.
| Workload shape | Token mix | Better pick | GLM 5.1 | KAT-Coder-Pro V2 |
|---|---|---|---|---|
| Input-heavy / RAG | 5M input + 500K output | KAT-Coder-Pro V2 | $6.44 | $2.1 |
| Balanced workload | 1M input + 1M output | KAT-Coder-Pro V2 | $4.06 | $1.5 |
| Output-heavy chatbot | 1M input + 5M output | KAT-Coder-Pro V2 | $16.38 | $6.3 |
KAT-Coder-Pro V2 is $1.88 cheaper per 1M output tokens (61% lower; 2.57x difference).
KAT-Coder-Pro V2 has 53.25K more context (1.26x larger).
KAT-Coder-Pro V2 is $1.62 cheaper on the standard workload (64.3% 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 has the lower input price; KAT-Coder-Pro V2 has the lower output price; KAT-Coder-Pro V2 offers the larger context window. For the 1M input plus 500K output sample, KAT-Coder-Pro V2 is cheaper for the standard workload.
For a 1M input token plus 500K output token workload, the estimated API cost is $2.52 for GLM 5.1 and $0.9 for KAT-Coder-Pro V2.
Choose GLM 5.1 when its provider, model quality, latency, or availability is more important than the numeric price/context winner.
Choose KAT-Coder-Pro V2 when you care most about lower input-token price, lower output-token price, and larger context window.
- On the standard 1M input plus 500K output workload, KAT-Coder-Pro V2 is estimated at $0.9 vs $2.52 for GLM 5.1, saving $1.62 (64.3% lower).
- KAT-Coder-Pro V2 is $1.62 cheaper on the standard workload (64.3% lower).
- KAT-Coder-Pro V2 is $0.68 cheaper per 1M input tokens (69.4% lower; 3.27x difference).
- KAT-Coder-Pro V2 is $1.88 cheaper per 1M output tokens (61% lower; 2.57x difference).
- KAT-Coder-Pro V2 has 53.25K more context (1.26x larger).
| Feature | GLM 5.1 (Z.ai) | KAT-Coder-Pro V2 (Kwaipilot) |
|---|---|---|
| Input Price prompt tokens per 1M | $0.98 | $0.3 |
| Completion Price per 1M tokens | $3.08 | $1.2 |
| Sample Workload Cost 1M input + 500K output | $2.52 | $0.9 |
| Context Window | 202.75K | 256K |
| Release Date |
Use-Case Decision Matrix
| Use case | Better pick | Why |
|---|---|---|
| Budget-constrained production | KAT-Coder-Pro V2 | On the standard 1M input plus 500K output workload, KAT-Coder-Pro V2 is estimated at $0.9 vs $2.52 for GLM 5.1, saving $1.62 (64.3% lower). |
| High-volume input processing | KAT-Coder-Pro V2 | Lower prompt-token price matters most when prompts, retrieved passages, or documents dominate the bill. |
| Long responses and chatbots | KAT-Coder-Pro V2 | Lower output-token price matters most when assistants generate many completion tokens. |
| RAG or long-document work | KAT-Coder-Pro V2 | A larger context window leaves more room for retrieved passages, conversation history, or source files. |
Related Alternatives
- GLM 4.5 Air (free) can replace GLM 5.1 when lower sample workload cost matters most: $0.
- GLM 4 32B can replace GLM 5.1 when lower sample workload cost matters most: $0.15.
- GLM 4.7 Flash can replace GLM 5.1 when lower sample workload cost matters most: $0.26.
- GLM 4.5 Air can replace GLM 5.1 when lower sample workload cost matters most: $0.55.
- Llama 4 Scout offers 10M context with $0.23 sample workload cost.
- Grok 4.20 offers 2M context with $2.5 sample workload cost.
- Owl Alpha offers 1.05M context with $0 sample workload cost.
- Gemini 3.1 Flash Lite offers 1.05M context with $1 sample workload cost.
- No popular competitor is currently available.
Cheaper alternatives
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Open provider hubsZ.ai catalog
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