Nex-N2-Pro (free) is free for input tokens while Claude Fable 5 (batch) costs $5 per 1M tokens.
API cost decision in 10 seconds
Claude Fable 5 (batch) vs Nex-N2-Pro (free)
Pick Nex-N2-Pro (free) for lower cost; pick Claude Fable 5 (batch) 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 Nex-N2-Pro (free) for lower cost; pick Claude Fable 5 (batch) only if the larger context window matters more.
On the standard 1M input plus 500K output workload, Nex-N2-Pro (free) is estimated at $0 vs $17.5 for Claude Fable 5 (batch), saving $17.5 (100% lower).
Cost-first pickNex-N2-Pro (free)
Context-first pickClaude Fable 5 (batch)
Sample savings$17.5100%
10x traffic gap$175
Claude Fable 5 (batch) has more context, but Nex-N2-Pro (free) saves $17.5 on the standard workload. At 10x that traffic, the same price gap is about $175. 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 | Claude Fable 5 (batch) | Nex-N2-Pro (free) |
|---|---|---|---|---|
| Input-heavy / RAG | 5M input + 500K output | Nex-N2-Pro (free) | $37.5 | $0 |
| Balanced workload | 1M input + 1M output | Nex-N2-Pro (free) | $30 | $0 |
| Output-heavy chatbot | 1M input + 5M output | Nex-N2-Pro (free) | $130 | $0 |
Nex-N2-Pro (free) is free for output tokens while Claude Fable 5 (batch) costs $25 per 1M tokens.
Claude Fable 5 (batch) has 737.86K more context (3.81x larger).
Nex-N2-Pro (free) is free for the standard workload while the other model is estimated at $17.5.
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; Claude Fable 5 (batch) 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 $17.5 for Claude Fable 5 (batch) and $0 for Nex-N2-Pro (free).
Choose Claude Fable 5 (batch) when you care most about larger context window.
Choose Nex-N2-Pro (free) when you care most about lower input-token price, and lower output-token price.
- On the standard 1M input plus 500K output workload, Nex-N2-Pro (free) is estimated at $0 vs $17.5 for Claude Fable 5 (batch), saving $17.5 (100% lower).
- Nex-N2-Pro (free) is free for the standard workload while the other model is estimated at $17.5.
- Nex-N2-Pro (free) is free for input tokens while Claude Fable 5 (batch) costs $5 per 1M tokens.
- Nex-N2-Pro (free) is free for output tokens while Claude Fable 5 (batch) costs $25 per 1M tokens.
- Claude Fable 5 (batch) has 737.86K more context (3.81x larger).
| Feature | Claude Fable 5 (batch) (Anthropic) | Nex-N2-Pro (free) (Nex AGI) |
|---|---|---|
| Input Price prompt tokens per 1M | $5 | $0 |
| Completion Price per 1M tokens | $25 | $0 |
| Sample Workload Cost 1M input + 500K output | $17.5 | $0 |
| Context Window | 1M | 262.14K |
| Release Date |
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 $17.5 for Claude Fable 5 (batch), saving $17.5 (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 | Claude Fable 5 (batch) | A larger context window leaves more room for retrieved passages, conversation history, or source files. |
Related Alternatives
- Claude 3 Haiku can replace Claude Fable 5 (batch) when lower sample workload cost matters most: $0.88.
- Claude Haiku 4.5 (batch) can replace Claude Fable 5 (batch) when lower sample workload cost matters most: $1.75.
- Claude 3.5 Haiku can replace Claude Fable 5 (batch) when lower sample workload cost matters most: $2.8.
- Claude Sonnet 5 (batch) can replace Claude Fable 5 (batch) when lower sample workload cost matters most: $3.5.
- 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.
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- MiMo-V2.5 · Xiaomi · #2
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- Ox Alpha · stealth · #4
Cheaper alternatives
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Open provider hubsAnthropic catalog
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Open Anthropic modelsNex AGI catalog
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Open Nex AGI modelsClaude Fable 5 is a Mythos-class model from Anthropic, built for autonomous knowledge work and coding. It supports text, image, and file inputs with text output, with reasoning support and...
Nex-N2-Pro is an agentic mixture-of-experts model from Nex AGI, with 17B active parameters out of 397B total. Built on the Qwen3.5 architecture, it accepts text and image input and produces...