Inkling Small (free) is free for input tokens while Muse Spark 1.2 costs $1.25 per 1M tokens.
API cost decision in 10 seconds
Muse Spark 1.2 vs Inkling Small (free)
Pick Inkling Small (free) for lower cost; pick Muse Spark 1.2 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 Inkling Small (free) for lower cost; pick Muse Spark 1.2 only if the larger context window matters more.
On the standard 1M input plus 500K output workload, Inkling Small (free) is estimated at $0 vs $3.38 for Muse Spark 1.2, saving $3.38 (100% lower).
Cost-first pickInkling Small (free)
Context-first pickMuse Spark 1.2
Sample savings$3.38100%
10x traffic gap$33.75
Muse Spark 1.2 has more context, but Inkling Small (free) saves $3.38 on the standard workload. At 10x that traffic, the same price gap is about $33.75. Use the calculator below to replace the sample workload with your own token volume.
Cost sensitivity
Workload Sensitivity
Inkling Small (free) stays cheaper across input-heavy, balanced, and output-heavy sample workloads.
| Workload shape | Token mix | Better pick | Muse Spark 1.2 | Inkling Small (free) |
|---|---|---|---|---|
| Input-heavy / RAG | 5M input + 500K output | Inkling Small (free) | $8.38 | $0 |
| Balanced workload | 1M input + 1M output | Inkling Small (free) | $5.5 | $0 |
| Output-heavy chatbot | 1M input + 5M output | Inkling Small (free) | $22.5 | $0 |
Inkling Small (free) is free for output tokens while Muse Spark 1.2 costs $4.25 per 1M tokens.
Muse Spark 1.2 has 786.43K more context (4x larger).
Inkling Small (free) is free for the standard workload while the other model is estimated at $3.38.
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
Inkling Small (free) has the lower input price; Inkling Small (free) has the lower output price; Muse Spark 1.2 offers the larger context window. For the 1M input plus 500K output sample, Inkling Small (free) is cheaper for the standard workload.
For a 1M input token plus 500K output token workload, the estimated API cost is $3.38 for Muse Spark 1.2 and $0 for Inkling Small (free).
Choose Muse Spark 1.2 when you care most about larger context window.
Choose Inkling Small (free) when you care most about lower input-token price, and lower output-token price.
- On the standard 1M input plus 500K output workload, Inkling Small (free) is estimated at $0 vs $3.38 for Muse Spark 1.2, saving $3.38 (100% lower).
- Inkling Small (free) is free for the standard workload while the other model is estimated at $3.38.
- Inkling Small (free) is free for input tokens while Muse Spark 1.2 costs $1.25 per 1M tokens.
- Inkling Small (free) is free for output tokens while Muse Spark 1.2 costs $4.25 per 1M tokens.
- Muse Spark 1.2 has 786.43K more context (4x larger).
| Feature | Muse Spark 1.2 (Meta) | Inkling Small (free) (Thinking Machines) |
|---|---|---|
| Input Price prompt tokens per 1M | $1.25 | $0 |
| Completion Price per 1M tokens | $4.25 | $0 |
| Sample Workload Cost 1M input + 500K output | $3.38 | $0 |
| Context Window | 1.05M | 262.14K |
| Release Date |
Use-Case Decision Matrix
| Use case | Better pick | Why |
|---|---|---|
| Budget-constrained production | Inkling Small (free) | On the standard 1M input plus 500K output workload, Inkling Small (free) is estimated at $0 vs $3.38 for Muse Spark 1.2, saving $3.38 (100% lower). |
| High-volume input processing | Inkling Small (free) | Lower prompt-token price matters most when prompts, retrieved passages, or documents dominate the bill. |
| Long responses and chatbots | Inkling Small (free) | Lower output-token price matters most when assistants generate many completion tokens. |
| RAG or long-document work | Muse Spark 1.2 | A larger context window leaves more room for retrieved passages, conversation history, or source files. |
Related Alternatives
- Llama 3.3 70B Instruct (free) can replace Muse Spark 1.2 when lower sample workload cost matters most: $0.
- Llama 3.2 3B Instruct (free) can replace Muse Spark 1.2 when lower sample workload cost matters most: $0.
- Llama 3.1 8B Instruct can replace Muse Spark 1.2 when lower sample workload cost matters most: $0.09.
- Llama 3.2 1B Instruct can replace Muse Spark 1.2 when lower sample workload cost matters most: $0.13.
- 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
- Hy3 · Tencent · #3
- Ox Alpha · stealth · #4
Cheaper alternatives
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Open Thinking Machines modelsMuse Spark 1.2 is a reasoning model from Meta, designed for complex agentic tasks. It accepts text, images, video, audio, and PDF documents, returns text, and offers a 1M-token context...
Inkling Small is an open-weight multimodal mixture-of-experts model from Thinking Machines Lab, with 12B active parameters out of 276B total. It is positioned as the smaller, more efficient member of...