API cost decision in 10 seconds

Gemma 4 31B vs 🔥GPT-5.4

Pick Gemma 4 31B for lower cost; pick GPT-5.4 only if the larger context window matters more.

Pricing data updated: 2026-05-26 12:47 UTC Prices normalized to USD per 1M tokens Sample workload: 1M input + 500K output

Budget verdict

Pick Gemma 4 31B for lower cost; pick GPT-5.4 only if the larger context window matters more.

On the standard 1M input plus 500K output workload, Gemma 4 31B is estimated at $0.3 vs $10 for GPT-5.4, saving $9.7 (97% lower).

Cost-first pickGemma 4 31B

Context-first pickGPT-5.4

Sample savings$9.797%

10x traffic gap$96.95

GPT-5.4 has more context, but Gemma 4 31B saves $9.7 on the standard workload. At 10x that traffic, the same price gap is about $96.95. Use the calculator below to replace the sample workload with your own token volume.

Cost sensitivity

Workload Sensitivity

Same prices, different token mixes.

Gemma 4 31B stays cheaper across input-heavy, balanced, and output-heavy sample workloads.

Workload shape	Token mix	Better pick	Gemma 4 31B	GPT-5.4
Input-heavy / RAG	5M input + 500K output	Gemma 4 31B	$0.78	$20
Balanced workload	1M input + 1M output	Gemma 4 31B	$0.49	$17.5
Output-heavy chatbot	1M input + 5M output	Gemma 4 31B	$1.97	$77.5

Cheaper inputGemma 4 31B$0.12 vs $2.5 / 1M

Cheaper outputGemma 4 31B$0.37 vs $15 / 1M

Larger contextGPT-5.4262.14K vs 1.05M

Sample workloadGemma 4 31B$0.3 vs $10

Estimate your workload cost

Your Workload Cost

Prices are normalized to USD per 1M tokens.

Monthly input tokensMonthly output tokens

Gemma 4 31BCalculating…Estimated API cost

GPT-5.4Calculating…Estimated API cost

Cheaper for this workloadCalculating…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

Gemma 4 31B has the lower input price, Gemma 4 31B has the lower output price, and GPT-5.4 offers the larger context window.

For a 1M input token plus 500K output token workload, the estimated API cost is $0.3 for Gemma 4 31B and $10 for GPT-5.4.

Best Fit

Choose Gemma 4 31B when you care most about lower input-token price, and lower output-token price.

Choose GPT-5.4 when you care most about larger context window.

Head-to-Head Specs

Feature	Gemma 4 31B (Google)	🔥GPT-5.4 (OpenAI)
Input Price prompt tokens per 1M	$0.12	$2.5
Completion Price per 1M tokens	$0.37	$15
Sample Workload Cost 1M input + 500K output	$0.3	$10
Context Window	262.14K	1.05M
Release Date	2026-04-02	2026-03-05
Popularity		#19

Gemma 4 31B

Gemma 4 31B Instruct is Google DeepMind's 30.7B dense multimodal model supporting text and image input with text output. Features a 256K token context window, configurable thinking/reasoning mode, native function...

GPT-5.4

GPT-5.4 is OpenAI’s latest frontier model, unifying the Codex and GPT lines into a single system. It features a 1M+ token context window (922K input, 128K output) with support for...

Use-Case Decision Matrix

Use case	Better pick	Why
Budget-constrained production	Gemma 4 31B	On the standard 1M input plus 500K output workload, Gemma 4 31B is estimated at $0.3 vs $10 for GPT-5.4, saving $9.7 (97% lower).
High-volume input processing	Gemma 4 31B	Lower prompt-token price matters most when prompts or retrieved passages dominate the bill.
Long responses and chatbots	Gemma 4 31B	Lower output-token price matters most when assistants generate many completion tokens.
RAG or long-document work	GPT-5.4	A larger context window leaves more room for retrieved passages and source files.