LFM2.5-1.2B-Instruct (free) is free for input tokens while Grok Build 0.1 costs $1 per 1M tokens.
API cost decision in 10 seconds
NewGrok Build 0.1 vs LFM2.5-1.2B-Instruct (free)
Pick LFM2.5-1.2B-Instruct (free) for lower cost; pick Grok Build 0.1 only if the larger context window matters more.
Page updated:
Data confirmed:
Prices normalized to USD per 1M tokens
Sample workload: 1M input + 500K output
Budget verdict
Pick LFM2.5-1.2B-Instruct (free) for lower cost; pick Grok Build 0.1 only if the larger context window matters more.
On the standard 1M input plus 500K output workload, LFM2.5-1.2B-Instruct (free) is estimated at $0 vs $2 for Grok Build 0.1, saving $2 (100% lower).
Cost-first pickLFM2.5-1.2B-Instruct (free)
Context-first pickGrok Build 0.1
Sample savings$2100%
10x traffic gap$20
Grok Build 0.1 has more context, but LFM2.5-1.2B-Instruct (free) saves $2 on the standard workload. At 10x that traffic, the same price gap is about $20. Use the calculator below to replace the sample workload with your own token volume.
Cost sensitivity
Workload Sensitivity
LFM2.5-1.2B-Instruct (free) stays cheaper across input-heavy, balanced, and output-heavy sample workloads.
| Workload shape | Token mix | Better pick | Grok Build 0.1 | LFM2.5-1.2B-Instruct (free) |
|---|---|---|---|---|
| Input-heavy / RAG | 5M input + 500K output | LFM2.5-1.2B-Instruct (free) | $6 | $0 |
| Balanced workload | 1M input + 1M output | LFM2.5-1.2B-Instruct (free) | $3 | $0 |
| Output-heavy chatbot | 1M input + 5M output | LFM2.5-1.2B-Instruct (free) | $11 | $0 |
LFM2.5-1.2B-Instruct (free) is free for output tokens while Grok Build 0.1 costs $2 per 1M tokens.
Grok Build 0.1 has 223.23K more context (7.81x larger).
LFM2.5-1.2B-Instruct (free) is free for the standard workload while the other model is estimated at $2.
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
LFM2.5-1.2B-Instruct (free) has the lower input price; LFM2.5-1.2B-Instruct (free) has the lower output price; Grok Build 0.1 offers the larger context window. For the 1M input plus 500K output sample, LFM2.5-1.2B-Instruct (free) is cheaper for the standard workload.
For a 1M input token plus 500K output token workload, the estimated API cost is $2 for Grok Build 0.1 and $0 for LFM2.5-1.2B-Instruct (free).
Choose Grok Build 0.1 when you care most about larger context window.
Choose LFM2.5-1.2B-Instruct (free) when you care most about lower input-token price, and lower output-token price.
- On the standard 1M input plus 500K output workload, LFM2.5-1.2B-Instruct (free) is estimated at $0 vs $2 for Grok Build 0.1, saving $2 (100% lower).
- LFM2.5-1.2B-Instruct (free) is free for the standard workload while the other model is estimated at $2.
- LFM2.5-1.2B-Instruct (free) is free for input tokens while Grok Build 0.1 costs $1 per 1M tokens.
- LFM2.5-1.2B-Instruct (free) is free for output tokens while Grok Build 0.1 costs $2 per 1M tokens.
- Grok Build 0.1 has 223.23K more context (7.81x larger).
| Feature | NewGrok Build 0.1 (xAI) | LFM2.5-1.2B-Instruct (free) (LiquidAI) |
|---|---|---|
| Input Price prompt tokens per 1M | $1 | $0 |
| Completion Price per 1M tokens | $2 | $0 |
| Sample Workload Cost 1M input + 500K output | $2 | $0 |
| Context Window | 256K | 32.77K |
| Release Date |
Use-Case Decision Matrix
| Use case | Better pick | Why |
|---|---|---|
| Budget-constrained production | LFM2.5-1.2B-Instruct (free) | On the standard 1M input plus 500K output workload, LFM2.5-1.2B-Instruct (free) is estimated at $0 vs $2 for Grok Build 0.1, saving $2 (100% lower). |
| High-volume input processing | LFM2.5-1.2B-Instruct (free) | Lower prompt-token price matters most when prompts, retrieved passages, or documents dominate the bill. |
| Long responses and chatbots | LFM2.5-1.2B-Instruct (free) | Lower output-token price matters most when assistants generate many completion tokens. |
| RAG or long-document work | Grok Build 0.1 | A larger context window leaves more room for retrieved passages, conversation history, or source files. |
Related Alternatives
- No lower-cost same-provider swap is currently tracked for this pair.
- 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.
- DeepSeek V4 Flash offers 1.05M context with $0.2 sample workload cost.
- DeepSeek V4 Flash · DeepSeek · #1
- Hy3 preview · Tencent · #2
- Claude Opus 4.7 · Anthropic · #3
- Claude Sonnet 4.6 · Anthropic · #4
Cheaper alternatives
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Open LiquidAI modelsGrok Build 0.1 is xAI’s fast coding model trained specifically for agentic software engineering workflows. It supports text and image inputs with text output, and is optimized for interactive coding...
LFM2.5-1.2B-Instruct is a compact, high-performance instruction-tuned model built for fast on-device AI. It delivers strong chat quality in a 1.2B parameter footprint, with efficient edge inference and broad runtime support.