Pareto 26.10 Preview is $4.2 cheaper per 1M input tokens (84% lower; 6.25x difference).
API cost decision in 10 seconds
NewPareto 26.10 Preview vs Claude Fable 5.1 (batch)
Pick Pareto 26.10 Preview 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 Pareto 26.10 Preview when budget and context both matter.
On the standard 1M input plus 500K output workload, Pareto 26.10 Preview is estimated at $2.4 vs $17.5 for Claude Fable 5.1 (batch), saving $15.1 (86.3% lower).
Cost-first pickPareto 26.10 Preview
Context-first pickPareto 26.10 Preview
Sample savings$15.186.3%
10x traffic gap$151
Pareto 26.10 Preview is cheaper on the standard workload and also has the larger context window. At 10x that traffic, the same price gap is about $151. Use the calculator below to replace the sample workload with your own token volume.
Cost sensitivity
Workload Sensitivity
Pareto 26.10 Preview stays cheaper across input-heavy, balanced, and output-heavy sample workloads.
| Workload shape | Token mix | Better pick | Pareto 26.10 Preview | Claude Fable 5.1 (batch) |
|---|---|---|---|---|
| Input-heavy / RAG | 5M input + 500K output | Pareto 26.10 Preview | $5.6 | $37.5 |
| Balanced workload | 1M input + 1M output | Pareto 26.10 Preview | $4 | $30 |
| Output-heavy chatbot | 1M input + 5M output | Pareto 26.10 Preview | $16.8 | $130 |
Pareto 26.10 Preview is $21.8 cheaper per 1M output tokens (87.2% lower; 7.81x difference).
Pareto 26.10 Preview has 48.58K more context (1.05x larger).
Pareto 26.10 Preview is $15.1 cheaper on the standard workload (86.3% 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
Pareto 26.10 Preview has the lower input price; Pareto 26.10 Preview has the lower output price; Pareto 26.10 Preview offers the larger context window. For the 1M input plus 500K output sample, Pareto 26.10 Preview is cheaper for the standard workload.
For a 1M input token plus 500K output token workload, the estimated API cost is $2.4 for Pareto 26.10 Preview and $17.5 for Claude Fable 5.1 (batch).
Choose Pareto 26.10 Preview when you care most about lower input-token price, lower output-token price, and larger context window.
Choose Claude Fable 5.1 (batch) when its provider, model quality, latency, or availability is more important than the numeric price/context winner.
- On the standard 1M input plus 500K output workload, Pareto 26.10 Preview is estimated at $2.4 vs $17.5 for Claude Fable 5.1 (batch), saving $15.1 (86.3% lower).
- Pareto 26.10 Preview is $15.1 cheaper on the standard workload (86.3% lower).
- Pareto 26.10 Preview is $4.2 cheaper per 1M input tokens (84% lower; 6.25x difference).
- Pareto 26.10 Preview is $21.8 cheaper per 1M output tokens (87.2% lower; 7.81x difference).
- Pareto 26.10 Preview has 48.58K more context (1.05x larger).
| Feature | NewPareto 26.10 Preview (unbiased) | Claude Fable 5.1 (batch) (Anthropic) |
|---|---|---|
| Input Price prompt tokens per 1M | $0.8 | $5 |
| Completion Price per 1M tokens | $3.2 | $25 |
| Sample Workload Cost 1M input + 500K output | $2.4 | $17.5 |
| Context Window | 1.05M | 1M |
| Release Date |
Use-Case Decision Matrix
| Use case | Better pick | Why |
|---|---|---|
| Budget-constrained production | Pareto 26.10 Preview | On the standard 1M input plus 500K output workload, Pareto 26.10 Preview is estimated at $2.4 vs $17.5 for Claude Fable 5.1 (batch), saving $15.1 (86.3% lower). |
| High-volume input processing | Pareto 26.10 Preview | Lower prompt-token price matters most when prompts, retrieved passages, or documents dominate the bill. |
| Long responses and chatbots | Pareto 26.10 Preview | Lower output-token price matters most when assistants generate many completion tokens. |
| RAG or long-document work | Pareto 26.10 Preview | A larger context window leaves more room for retrieved passages, conversation history, or source files. |
Related Alternatives
- Claude Haiku 5.5 (batch) can replace Claude Fable 5.1 (batch) when lower sample workload cost matters most: $0.17.
- Claude Haiku 5.5 can replace Claude Fable 5.1 (batch) when lower sample workload cost matters most: $0.35.
- Claude Haiku Latest can replace Claude Fable 5.1 (batch) when lower sample workload cost matters most: $0.35.
- Claude 3 Haiku can replace Claude Fable 5.1 (batch) when lower sample workload cost matters most: $0.88.
- 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.
- Llama 4 Scout offers 1.31M context with $0.47 sample workload cost.
- MiMo-V2.6-Flash offers 1.05M context with $0.28 sample workload cost.
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- Step 5 Preview · StepFun · #2
- GLM 5.3 Flash · Z.ai · #3
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