Model Comparison

GPT-5.4 vs Gemma 4 31B

GPT-5.4 significantly outperforms across most benchmarks. Gemma 4 31B is 27.4x cheaper per token.

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Performance Benchmarks

Comparative analysis across standard metrics

3 benchmarks

GPT-5.4 outperforms in 3 benchmarks (GPQA, Humanity's Last Exam, MMMU-Pro), while Gemma 4 31B is better at 0 benchmarks.

GPT-5.4 significantly outperforms across most benchmarks.

Sat Apr 18 2026 • llm-stats.com

Arena Performance

Human preference votes

Pricing Analysis

Price comparison per million tokens

Gemma 4 31B costs less

For input processing, GPT-5.4 ($2.50/1M tokens) is 17.9x more expensive than Gemma 4 31B ($0.14/1M tokens).

For output processing, GPT-5.4 ($15.00/1M tokens) is 37.5x more expensive than Gemma 4 31B ($0.40/1M tokens).

In conclusion, GPT-5.4 is more expensive than Gemma 4 31B.*

* Using a 3:1 ratio of input to output tokens

Lowest available price from all providers
Sat Apr 18 2026 • llm-stats.com
OpenAI
GPT-5.4
Input tokens$2.50
Output tokens$15.00
Best providerOpenAI
Google
Gemma 4 31B
Input tokens$0.14
Output tokens$0.40
Best providerNovita
Notice missing or incorrect data?Start an Issue→

Context Window

Maximum input and output token capacity

GPT-5.4 accepts 1,000,000 input tokens compared to Gemma 4 31B's 262,144 tokens. Gemma 4 31B can generate longer responses up to 131,072 tokens, while GPT-5.4 is limited to 128,000 tokens.

OpenAI
GPT-5.4
Input1,000,000 tokens
Output128,000 tokens
Google
Gemma 4 31B
Input262,144 tokens
Output131,072 tokens
Sat Apr 18 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

Both GPT-5.4 and Gemma 4 31B support multimodal inputs.

They are both capable of processing various types of data, offering versatility in application.

GPT-5.4

Text
Images
Audio
Video

Gemma 4 31B

Text
Images
Audio
Video

License

Usage and distribution terms

GPT-5.4 is licensed under a proprietary license, while Gemma 4 31B uses Apache 2.0.

License differences may affect how you can use these models in commercial or open-source projects.

GPT-5.4

Proprietary

Closed source

Gemma 4 31B

Apache 2.0

Open weights

Release Timeline

When each model was launched

GPT-5.4 was released on 2026-03-05, while Gemma 4 31B was released on 2026-04-02.

Gemma 4 31B is 1 month newer than GPT-5.4.

GPT-5.4

Mar 5, 2026

1 months ago

Gemma 4 31B

Apr 2, 2026

2 weeks ago

4w newer

Knowledge Cutoff

When training data ends

Gemma 4 31B has a documented knowledge cutoff of 2025-01-01, while GPT-5.4's cutoff date is not specified.

We can confirm Gemma 4 31B's training data extends to 2025-01-01, but cannot make a direct comparison without GPT-5.4's cutoff date.

GPT-5.4

—

Gemma 4 31B

Jan 2025

Provider Availability

GPT-5.4 is available from OpenAI. Gemma 4 31B is available from Novita.

GPT-5.4

openai logo
OpenAI
Input Price:Input: $2.50/1MOutput Price:Output: $15.00/1M

Gemma 4 31B

novita logo
Novita
Input Price:Input: $0.14/1MOutput Price:Output: $0.40/1M
* Prices shown are per million tokens

Outputs Comparison

Notice missing or incorrect data?Start an Issue discussion→

Key Takeaways

OpenAI
Larger context window (1,000,000 tokens)
Higher GPQA score (92.8% vs 84.3%)
Higher Humanity's Last Exam score (39.8% vs 26.5%)
Higher MMMU-Pro score (81.2% vs 76.9%)
Google
Less expensive input tokens
Less expensive output tokens
Has open weights

Detailed Comparison

AI Model Comparison Table
Feature
OpenAI
GPT-5.4
Google
Gemma 4 31B

FAQ

Common questions about GPT-5.4 vs Gemma 4 31B

GPT-5.4 significantly outperforms across most benchmarks. GPT-5.4 is made by OpenAI and Gemma 4 31B is made by Google. The best choice depends on your use case — compare their benchmark scores, pricing, and capabilities above.
GPT-5.4 scores Tau2 Telecom: 98.9%, ARC-AGI: 93.7%, Graphwalks BFS <128k: 93.0%, GPQA: 92.8%, Graphwalks parents <128k: 89.8%. Gemma 4 31B scores AIME 2026: 89.2%, MMMLU: 88.4%, t2-bench: 86.4%, MathVision: 85.6%, MMLU-Pro: 85.2%.
Gemma 4 31B is 17.9x cheaper for input tokens. GPT-5.4 costs $2.50/M input and $15.00/M output via openai. Gemma 4 31B costs $0.14/M input and $0.40/M output via novita.
GPT-5.4 supports 1.0M tokens and Gemma 4 31B supports 262K tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.
Key differences include context window (1.0M vs 262K), input pricing ($2.50 vs $0.14/M), licensing (Proprietary vs Apache 2.0). See the full comparison above for benchmark-by-benchmark results.
GPT-5.4 is developed by OpenAI and Gemma 4 31B is developed by Google.