API cost decision in 10 seconds

GPT-5 Mini vs NewLaguna XS.2 (free)

Pick Laguna XS.2 (free) for lower cost; pick GPT-5 Mini 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 Laguna XS.2 (free) for lower cost; pick GPT-5 Mini only if the larger context window matters more.

On the standard 1M input plus 500K output workload, Laguna XS.2 (free) is estimated at $0 vs $1.25 for GPT-5 Mini, saving $1.25 (100% lower).

Cost-first pickLaguna XS.2 (free)
Context-first pickGPT-5 Mini
Sample savings$1.25100%
10x traffic gap$12.5

GPT-5 Mini has more context, but Laguna XS.2 (free) saves $1.25 on the standard workload. At 10x that traffic, the same price gap is about $12.5. Use the calculator below to replace the sample workload with your own token volume.

Cost sensitivity

Workload Sensitivity

Same prices, different token mixes.

Laguna XS.2 (free) stays cheaper across input-heavy, balanced, and output-heavy sample workloads.

Workload shapeToken mixBetter pickGPT-5 MiniLaguna XS.2 (free)
Input-heavy / RAG5M input + 500K outputLaguna XS.2 (free)$2.25$0
Balanced workload1M input + 1M outputLaguna XS.2 (free)$2.25$0
Output-heavy chatbot1M input + 5M outputLaguna XS.2 (free)$10.25$0
Cheaper input Laguna XS.2 (free) $0.25 vs $0 / 1M

Laguna XS.2 (free) is free for input tokens while GPT-5 Mini costs $0.25 per 1M tokens.

Cheaper output Laguna XS.2 (free) $2 vs $0 / 1M

Laguna XS.2 (free) is free for output tokens while GPT-5 Mini costs $2 per 1M tokens.

Larger context GPT-5 Mini 400K vs 131.07K

GPT-5 Mini has 268.93K more context (3.05x larger).

Sample workload Laguna XS.2 (free) $1.25 vs $0

Laguna XS.2 (free) is free for the standard workload while the other model is estimated at $1.25.

Estimate your workload cost

Your Workload Cost

Prices are normalized to USD per 1M tokens.
GPT-5 Mini Calculating… Estimated API cost
Laguna XS.2 (free) 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

Laguna XS.2 (free) has the lower input price; Laguna XS.2 (free) has the lower output price; GPT-5 Mini offers the larger context window. For the 1M input plus 500K output sample, Laguna XS.2 (free) is cheaper for the standard workload.

For a 1M input token plus 500K output token workload, the estimated API cost is $1.25 for GPT-5 Mini and $0 for Laguna XS.2 (free).

Best Fit

Choose GPT-5 Mini when you care most about larger context window.

Choose Laguna XS.2 (free) when you care most about lower input-token price, and lower output-token price.

Decision Notes
  • On the standard 1M input plus 500K output workload, Laguna XS.2 (free) is estimated at $0 vs $1.25 for GPT-5 Mini, saving $1.25 (100% lower).
  • Laguna XS.2 (free) is free for the standard workload while the other model is estimated at $1.25.
  • Laguna XS.2 (free) is free for input tokens while GPT-5 Mini costs $0.25 per 1M tokens.
  • Laguna XS.2 (free) is free for output tokens while GPT-5 Mini costs $2 per 1M tokens.
  • GPT-5 Mini has 268.93K more context (3.05x larger).
Head-to-Head Specs
FeatureGPT-5 Mini
(OpenAI)
NewLaguna XS.2 (free)
(Poolside)
Input Price
prompt tokens per 1M
$0.25$0
Completion Price
per 1M tokens
$2$0
Sample Workload Cost
1M input + 500K output
$1.25$0
Context Window400K131.07K
Release Date
Popularity#33#56

Use-Case Decision Matrix

Use caseBetter pickWhy
Budget-constrained productionLaguna XS.2 (free)On the standard 1M input plus 500K output workload, Laguna XS.2 (free) is estimated at $0 vs $1.25 for GPT-5 Mini, saving $1.25 (100% lower).
High-volume input processingLaguna XS.2 (free)Lower prompt-token price matters most when prompts, retrieved passages, or documents dominate the bill.
Long responses and chatbotsLaguna XS.2 (free)Lower output-token price matters most when assistants generate many completion tokens.
RAG or long-document workGPT-5 MiniA 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-5 Mini when lower sample workload cost matters most: $0.
  • gpt-oss-20b (free) can replace GPT-5 Mini when lower sample workload cost matters most: $0.
  • gpt-oss-20b can replace GPT-5 Mini when lower sample workload cost matters most: $0.1.
  • gpt-oss-120b can replace GPT-5 Mini when lower sample workload cost matters most: $0.13.
Larger context near this budget

Cheaper alternatives

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

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Larger context alternatives

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

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Provider catalogs

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OpenAI catalog

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

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Poolside catalog

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

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GPT-5 Mini

GPT-5 Mini is a compact version of GPT-5, designed to handle lighter-weight reasoning tasks. It provides the same instruction-following and safety-tuning benefits as GPT-5, but with reduced latency and cost....

Laguna XS.2 (free)

Laguna XS.2 is the second-generation model in the XS size class from [Poolside](https://poolside.ai), their efficient coding agent series. It combines tool calling and reasoning capabilities with a compact footprint, offering...