API cost decision in 10 seconds

Gemma 4 31B vs Lyria 3 Pro Preview

Pick Lyria 3 Pro Preview when budget and context both matter.

Page updated:  Data confirmed:  Prices normalized to USD per 1M tokens Sample workload: 1M input + 500K output

Budget verdict

Pick Lyria 3 Pro Preview when budget and context both matter.

On the standard 1M input plus 500K output workload, Lyria 3 Pro Preview is estimated at $0 vs $0.3 for Gemma 4 31B, saving $0.3 (100% lower).

Cost-first pickLyria 3 Pro Preview
Context-first pickLyria 3 Pro Preview
Sample savings$0.3100%
10x traffic gap$3.05

Lyria 3 Pro Preview is cheaper on the standard workload and also has the larger context window. At 10x that traffic, the same price gap is about $3.05. Use the calculator below to replace the sample workload with your own token volume.

Cost sensitivity

Workload Sensitivity

Same prices, different token mixes.

Lyria 3 Pro Preview stays cheaper across input-heavy, balanced, and output-heavy sample workloads.

Workload shapeToken mixBetter pickGemma 4 31BLyria 3 Pro Preview
Input-heavy / RAG5M input + 500K outputLyria 3 Pro Preview$0.78$0
Balanced workload1M input + 1M outputLyria 3 Pro Preview$0.49$0
Output-heavy chatbot1M input + 5M outputLyria 3 Pro Preview$1.97$0
Cheaper input Lyria 3 Pro Preview $0.12 vs $0 / 1M

Lyria 3 Pro Preview is free for input tokens while Gemma 4 31B costs $0.12 per 1M tokens.

Cheaper output Lyria 3 Pro Preview $0.37 vs $0 / 1M

Lyria 3 Pro Preview is free for output tokens while Gemma 4 31B costs $0.37 per 1M tokens.

Larger context Lyria 3 Pro Preview 262.14K vs 1.05M

Lyria 3 Pro Preview has 786.43K more context (4x larger).

Sample workload Lyria 3 Pro Preview $0.3 vs $0

Lyria 3 Pro Preview is free for the standard workload while the other model is estimated at $0.3.

Estimate your workload cost

Your Workload Cost

Prices are normalized to USD per 1M tokens.
Gemma 4 31B Calculating… Estimated API cost
Lyria 3 Pro Preview 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

Lyria 3 Pro Preview has the lower input price; Lyria 3 Pro Preview has the lower output price; Lyria 3 Pro Preview offers the larger context window. For the 1M input plus 500K output sample, Lyria 3 Pro Preview is cheaper for the standard workload.

For a 1M input token plus 500K output token workload, the estimated API cost is $0.3 for Gemma 4 31B and $0 for Lyria 3 Pro Preview.

Best Fit

Choose Gemma 4 31B when its provider, model quality, latency, or availability is more important than the numeric price/context winner.

Choose Lyria 3 Pro Preview when you care most about lower input-token price, lower output-token price, and larger context window.

Decision Notes
  • On the standard 1M input plus 500K output workload, Lyria 3 Pro Preview is estimated at $0 vs $0.3 for Gemma 4 31B, saving $0.3 (100% lower).
  • Lyria 3 Pro Preview is free for the standard workload while the other model is estimated at $0.3.
  • Lyria 3 Pro Preview is free for input tokens while Gemma 4 31B costs $0.12 per 1M tokens.
  • Lyria 3 Pro Preview is free for output tokens while Gemma 4 31B costs $0.37 per 1M tokens.
  • Lyria 3 Pro Preview has 786.43K more context (4x larger).
Head-to-Head Specs
FeatureGemma 4 31B
(Google)		Lyria 3 Pro Preview
(Google)
Input Price
prompt tokens per 1M		$0.12$0
Completion Price
per 1M tokens		$0.37$0
Sample Workload Cost
1M input + 500K output		$0.3$0
Context Window262.14K1.05M
Release Date

Use-Case Decision Matrix

Use caseBetter pickWhy
Budget-constrained productionLyria 3 Pro PreviewOn the standard 1M input plus 500K output workload, Lyria 3 Pro Preview is estimated at $0 vs $0.3 for Gemma 4 31B, saving $0.3 (100% lower).
High-volume input processingLyria 3 Pro PreviewLower prompt-token price matters most when prompts, retrieved passages, or documents dominate the bill.
Long responses and chatbotsLyria 3 Pro PreviewLower output-token price matters most when assistants generate many completion tokens.
RAG or long-document workLyria 3 Pro PreviewA larger context window leaves more room for retrieved passages, conversation history, or source files.

Related Alternatives

Same-provider lower-cost swaps
  • Gemma 4 26B A4B (free) can replace Gemma 4 31B when lower sample workload cost matters most: $0.
  • Gemma 4 31B (free) can replace Gemma 4 31B when lower sample workload cost matters most: $0.
  • Lyria 3 Clip Preview can replace Gemma 4 31B when lower sample workload cost matters most: $0.
  • Gemma 3 4B can replace Gemma 4 31B when lower sample workload cost matters most: $0.08.
Larger context near this budget
  • Llama 4 Scout offers 10M context with $0.23 sample workload cost.
  • Owl Alpha offers 1.05M context with $0 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.

Open provider hubs

Google catalog

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

Open Google models
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