Nex-N2-Pro (free) is free for input tokens while GLM 5.1 costs $0.98 per 1M tokens.
API cost decision in 10 seconds
GLM 5.1 vs NewNex-N2-Pro (free)
Pick Nex-N2-Pro (free) when budget and context both matter.
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Data confirmed:
Prices normalized to USD per 1M tokens
Sample workload: 1M input + 500K output
Budget verdict
Pick Nex-N2-Pro (free) when budget and context both matter.
On the standard 1M input plus 500K output workload, Nex-N2-Pro (free) is estimated at $0 vs $2.52 for GLM 5.1, saving $2.52 (100% lower).
Cost-first pickNex-N2-Pro (free)
Context-first pickNex-N2-Pro (free)
Sample savings$2.52100%
10x traffic gap$25.2
Nex-N2-Pro (free) is cheaper on the standard workload and also has the larger context window. At 10x that traffic, the same price gap is about $25.2. Use the calculator below to replace the sample workload with your own token volume.
Cost sensitivity
Workload Sensitivity
Nex-N2-Pro (free) stays cheaper across input-heavy, balanced, and output-heavy sample workloads.
| Workload shape | Token mix | Better pick | GLM 5.1 | Nex-N2-Pro (free) |
|---|---|---|---|---|
| Input-heavy / RAG | 5M input + 500K output | Nex-N2-Pro (free) | $6.44 | $0 |
| Balanced workload | 1M input + 1M output | Nex-N2-Pro (free) | $4.06 | $0 |
| Output-heavy chatbot | 1M input + 5M output | Nex-N2-Pro (free) | $16.38 | $0 |
Nex-N2-Pro (free) is free for output tokens while GLM 5.1 costs $3.08 per 1M tokens.
Nex-N2-Pro (free) has 59.39K more context (1.29x larger).
Nex-N2-Pro (free) is free for the standard workload while the other model is estimated at $2.52.
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
Nex-N2-Pro (free) has the lower input price; Nex-N2-Pro (free) has the lower output price; Nex-N2-Pro (free) offers the larger context window. For the 1M input plus 500K output sample, Nex-N2-Pro (free) 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 for Nex-N2-Pro (free).
Choose GLM 5.1 when its provider, model quality, latency, or availability is more important than the numeric price/context winner.
Choose Nex-N2-Pro (free) 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, Nex-N2-Pro (free) is estimated at $0 vs $2.52 for GLM 5.1, saving $2.52 (100% lower).
- Nex-N2-Pro (free) is free for the standard workload while the other model is estimated at $2.52.
- Nex-N2-Pro (free) is free for input tokens while GLM 5.1 costs $0.98 per 1M tokens.
- Nex-N2-Pro (free) is free for output tokens while GLM 5.1 costs $3.08 per 1M tokens.
- Nex-N2-Pro (free) has 59.39K more context (1.29x larger).
| Feature | GLM 5.1 (Z.ai) | NewNex-N2-Pro (free) (Nex AGI) |
|---|---|---|
| Input Price prompt tokens per 1M | $0.98 | $0 |
| Completion Price per 1M tokens | $3.08 | $0 |
| Sample Workload Cost 1M input + 500K output | $2.52 | $0 |
| Context Window | 202.75K | 262.14K |
| Release Date | ||
| Popularity | #24 | #84 |
Use-Case Decision Matrix
| Use case | Better pick | Why |
|---|---|---|
| Budget-constrained production | Nex-N2-Pro (free) | On the standard 1M input plus 500K output workload, Nex-N2-Pro (free) is estimated at $0 vs $2.52 for GLM 5.1, saving $2.52 (100% lower). |
| High-volume input processing | Nex-N2-Pro (free) | Lower prompt-token price matters most when prompts, retrieved passages, or documents dominate the bill. |
| Long responses and chatbots | Nex-N2-Pro (free) | Lower output-token price matters most when assistants generate many completion tokens. |
| RAG or long-document work | Nex-N2-Pro (free) | 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 $0.25 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.
- DeepSeek V4 Flash offers 1.05M context with $0.2 sample workload cost.
- DeepSeek V4 Flash · DeepSeek · #1
- Hy3 preview · Tencent · #2
- MiMo-V2.5 · Xiaomi · #3
- MiniMax M3 · MiniMax · #4
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