API cost decision in 10 seconds

NewGrok Build 0.1 vs GPT Audio Mini

Pick GPT Audio Mini 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 GPT Audio Mini 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, GPT Audio Mini is estimated at $1.8 vs $2 for Grok Build 0.1, saving $0.2 (10% lower).

Cost-first pickGPT Audio Mini
Context-first pickGrok Build 0.1
Sample savings$0.210%
10x traffic gap$2

Grok Build 0.1 has more context, but GPT Audio Mini saves $0.2 on the standard workload. At 10x that traffic, the same price gap is about $2. Use the calculator below to replace the sample workload with your own token volume.

Cost sensitivity

Workload Sensitivity

Same prices, different token mixes.

Cost winner changes by workload shape: input-heavy / RAG favors GPT Audio Mini, balanced workload favors Tie, and output-heavy chatbot favors Grok Build 0.1.

Workload shapeToken mixBetter pickGrok Build 0.1GPT Audio Mini
Input-heavy / RAG5M input + 500K outputGPT Audio Mini$6$4.2
Balanced workload1M input + 1M outputTie$3$3
Output-heavy chatbot1M input + 5M outputGrok Build 0.1$11$12.6
Cheaper input GPT Audio Mini $1 vs $0.6 / 1M

GPT Audio Mini is $0.4 cheaper per 1M input tokens (40% lower; 1.67x difference).

Cheaper output Grok Build 0.1 $2 vs $2.4 / 1M

Grok Build 0.1 is $0.4 cheaper per 1M output tokens (16.7% lower; 1.2x difference).

Larger context Grok Build 0.1 256K vs 128K

Grok Build 0.1 has 128K more context (2x larger).

Sample workload GPT Audio Mini $2 vs $1.8

GPT Audio Mini is $0.2 cheaper on the standard workload (10% lower).

Estimate your workload cost

Your Workload Cost

Prices are normalized to USD per 1M tokens.
Grok Build 0.1 Calculating… Estimated API cost
GPT Audio Mini Calculating… Estimated API cost
Cheaper for this workload Calculating… Difference: calculating…

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

Verdict

GPT Audio Mini has the lower input price; Grok Build 0.1 has the lower output price; Grok Build 0.1 offers the larger context window. For the 1M input plus 500K output sample, GPT Audio Mini 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 $1.8 for GPT Audio Mini.

Best Fit

Choose Grok Build 0.1 when you care most about lower output-token price, and larger context window.

Choose GPT Audio Mini when you care most about lower input-token price.

Decision Notes
  • On the standard 1M input plus 500K output workload, GPT Audio Mini is estimated at $1.8 vs $2 for Grok Build 0.1, saving $0.2 (10% lower).
  • GPT Audio Mini is $0.2 cheaper on the standard workload (10% lower).
  • GPT Audio Mini is $0.4 cheaper per 1M input tokens (40% lower; 1.67x difference).
  • Grok Build 0.1 is $0.4 cheaper per 1M output tokens (16.7% lower; 1.2x difference).
  • Grok Build 0.1 has 128K more context (2x larger).
Head-to-Head Specs
FeatureNewGrok Build 0.1
(xAI)		GPT Audio Mini
(OpenAI)
Input Price
prompt tokens per 1M		$1$0.6
Completion Price
per 1M tokens		$2$2.4
Sample Workload Cost
1M input + 500K output		$2$1.8
Context Window256K128K
Release Date

Use-Case Decision Matrix

Use caseBetter pickWhy
Budget-constrained productionGPT Audio MiniOn the standard 1M input plus 500K output workload, GPT Audio Mini is estimated at $1.8 vs $2 for Grok Build 0.1, saving $0.2 (10% lower).
High-volume input processingGPT Audio MiniLower prompt-token price matters most when prompts, retrieved passages, or documents dominate the bill.
Long responses and chatbotsGrok Build 0.1Lower output-token price matters most when assistants generate many completion tokens.
RAG or long-document workGrok Build 0.1A larger context window leaves more room for retrieved passages, conversation history, or source files.

Related Alternatives

Same-provider lower-cost swaps
  • gpt-oss-120b (free) can replace GPT Audio Mini when lower sample workload cost matters most: $0.
  • gpt-oss-20b (free) can replace GPT Audio Mini when lower sample workload cost matters most: $0.
  • gpt-oss-20b can replace GPT Audio Mini when lower sample workload cost matters most: $0.1.
  • gpt-oss-120b can replace GPT Audio Mini when lower sample workload cost matters most: $0.13.
Larger context near this budget
  • 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.

Cheaper alternatives

Review low-cost models sorted by a standard 1M input plus 500K output workload.

Open cheapest models

Larger context alternatives

Find models with larger context windows for RAG, long documents, and codebase review.

Open largest context models

Provider catalogs

Compare models within provider hubs before choosing a final API vendor.

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xAI catalog

Review all tracked xAI models before deciding whether this matchup is the right shortlist.

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OpenAI catalog

Check other OpenAI models with comparable pricing, context, or release timing.

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Grok Build 0.1

Grok 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...

GPT Audio Mini

A cost-efficient version of GPT Audio. The new snapshot features an upgraded decoder for more natural sounding voices and maintains better voice consistency. Input is priced at $0.60 per million...