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Gemini 3.1 Flash-Lite vs Gemma 4 31B

Gemini 3.1 Flash-Lite and Gemma 4 31B are closely matched at 31.2 and 33.4 on the LLM Stats Score. Gemma 4 31B is 2.9x cheaper per token.

Google · Google · Updated for 2026

Which is better?

Gemini 3.1 Flash-Lite and Gemma 4 31B are closely matched on the overall LLM Stats Score at 31.2 and 33.4.

In the 5 individual benchmarks reported for both models, Gemma 4 31B wins 3; this is a narrower head-to-head signal than the composite indexes.

On price, Gemma 4 31B is roughly 2.9x cheaper per token on a blended 3:1 input/output basis, which adds up quickly at production volume.

Gemini 3.1 Flash-Lite also accepts a larger context window (1,000,000 input tokens), making it the stronger choice for long documents and large codebases.

Based on current LLM Stats indexes, shared benchmarks, pricing, and model metadata for 2026.

Choose Gemini 3.1 Flash-Lite

  • you process long inputs — it offers a 1,000,000 token context window

Choose Gemma 4 31B

  • you value its reported benchmark strengths — it wins 3 of 5 exact shared results
  • cost matters — it's about 2.9x cheaper per token
  • you want the most recent training data — it shipped Apr 2026
  • you need open weights you can self-host or fine-tune

At a glance

The differences that matter most.

Gemini 3.1 Flash-Lite
Google
Gemma 4 31B
Google
Core performance indexes
LLM Stats Score
31.2
#102
33.4
#90
Reasoning
31.6
#98
34.0
#83
Agents
11.0
#100
13.6
#82
Cost, coverage & limits
Benchmark wins
2 of 5
3 of 5
Input price
$0.25 / M
$0.13 / M
Output price
$1.50 / M
$0.38 / M
Context window
1,000,000
262,144

Capability indexes

Additional strengths measured across groups of related public benchmarks

4 shared
Index
Gemini 3.1 Flash-Lite
Gemma 4 31B
Math
22.1#135
29.3#82
Vision
17.6#76
19.3#67
Long context
15.0#48
17.4#40
Multimodal
22.4#53
21.9#57
Conservative TrueSkill rating · higher is betterHow scores work

Individual benchmarks

11 reported for Gemini 3.1 Flash-Lite · 12 for Gemma 4 31B

5 shared

Gemini 3.1 Flash-Lite outperforms in 2 benchmarks (GPQA, MMMLU), while Gemma 4 31B is better at 3 benchmarks (Humanity's Last Exam, MMMU-Pro, MRCR v2 (8-needle)).

Gemma 4 31B has a slight edge in benchmark performance.

Wed Sep 02 2026 • llm-stats.com

Human preference

Blind head-to-head votes and playground preference scores

Pricing Analysis

Price comparison per million tokens

Gemma 4 31B costs less

For input processing, Gemini 3.1 Flash-Lite ($0.25/1M tokens) is 1.9x more expensive than Gemma 4 31B ($0.13/1M tokens).

For output processing, Gemini 3.1 Flash-Lite ($1.50/1M tokens) is 3.9x more expensive than Gemma 4 31B ($0.38/1M tokens).

In conclusion, Gemini 3.1 Flash-Lite is more expensive than Gemma 4 31B.*

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

Lowest available price from all providers
Wed Sep 02 2026 • llm-stats.com
Google
Gemini 3.1 Flash-Lite
Input tokens$0.25
Output tokens$1.50
Best providerGoogle
Google
Gemma 4 31B
Input tokens$0.13
Output tokens$0.38
Best providerDeepinfra
Notice missing or incorrect data?Start an Issue→

Context Window

Maximum input and output token capacity

Gemini 3.1 Flash-Lite 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 Gemini 3.1 Flash-Lite is limited to 65,536 tokens.

Google
Gemini 3.1 Flash-Lite
Input1,000,000 tokens
Output65,536 tokens
Google
Gemma 4 31B
Input262,144 tokens
Output131,072 tokens
Wed Sep 02 2026 • llm-stats.com

Input capabilities

Documented input modalities across available providers

Both Gemini 3.1 Flash-Lite and Gemma 4 31B support multimodal inputs.

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

Gemini 3.1 Flash-Lite

Text
Images
Audio
Video

Gemma 4 31B

Text
Images
Audio
Video

License

Usage and distribution terms

Gemini 3.1 Flash-Lite 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.

Gemini 3.1 Flash-Lite

Proprietary

Closed source

Gemma 4 31B

Apache 2.0

Open weights

Release Timeline

When each model was launched

Gemini 3.1 Flash-Lite was released on 2026-03-03, while Gemma 4 31B was released on 2026-04-02.

Gemma 4 31B is 1 month newer than Gemini 3.1 Flash-Lite.

Gemini 3.1 Flash-Lite

Mar 3, 2026

6 months ago

Gemma 4 31B

Apr 2, 2026

5 months ago

1mo newer

Knowledge Cutoff

When training data ends

Gemini 3.1 Flash-Lite has a knowledge cutoff of 2025-01-31, while Gemma 4 31B has a cutoff of 2025-01-01.

Gemini 3.1 Flash-Lite has more recent training data (up to 2025-01-31), making it potentially better informed about events through that date compared to Gemma 4 31B (2025-01-01).

Gemini 3.1 Flash-Lite

Jan 2025

Gemma 4 31B

Jan 2025

Provider Availability

Gemini 3.1 Flash-Lite is available from Google. Gemma 4 31B is available from DeepInfra, FriendliAI, Novita, Together.

Gemini 3.1 Flash-Lite

google logo
Google
Input Price:Input: $0.25/1MOutput Price:Output: $1.50/1M

Gemma 4 31B

deepinfra logo
Deepinfra
Input Price:Input: $0.13/1MOutput Price:Output: $0.38/1M
friendli logo
FriendliAI
Input Price:Input: $0.14/1MOutput Price:Output: $0.40/1M
novita logo
Novita
Input Price:Input: $0.14/1MOutput Price:Output: $0.40/1M
together logo
Together
Input Price:Input: $0.39/1MOutput Price:Output: $0.97/1M
* Prices shown are per million tokens

Outputs Comparison

Notice missing or incorrect data?Start an Issue discussion→

Judge for yourself.

Run your own prompts against Gemini 3.1 Flash-Lite and Gemma 4 31B side-by-side, then vote on the output you prefer.

Gemini 3.1 Flash-Lite
✓ Preferred
Gemma 4 31B
Open in Playground

FAQ

Common questions about Gemini 3.1 Flash-Lite vs Gemma 4 31B.

Which is better, Gemini 3.1 Flash-Lite or Gemma 4 31B?

Gemini 3.1 Flash-Lite and Gemma 4 31B are closely matched on the LLM Stats Score at 31.2 and 33.4. Gemini 3.1 Flash-Lite is made by Google and Gemma 4 31B is made by Google. The best choice depends on your use case — compare their capability indexes, individual benchmarks, pricing, and limits above.

How does Gemini 3.1 Flash-Lite compare to Gemma 4 31B in benchmarks?

Gemini 3.1 Flash-Lite scores MMMLU: 88.9%, GPQA: 86.9%, VideoMMMU: 84.8%, MMMU-Pro: 76.8%, CharXiv-R: 73.2%. Gemma 4 31B scores AIME 2026: 89.2%, MMMLU: 88.4%, t2-bench: 86.4%, MathVision: 85.6%, MMLU-Pro: 85.2%.

Is Gemini 3.1 Flash-Lite cheaper than Gemma 4 31B?

Gemma 4 31B is 1.9x cheaper for input tokens. Gemini 3.1 Flash-Lite costs $0.25/M input and $1.50/M output via google. Gemma 4 31B costs $0.13/M input and $0.38/M output via deepinfra.

What are the context window sizes for Gemini 3.1 Flash-Lite and Gemma 4 31B?

Gemini 3.1 Flash-Lite 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.

What are the main differences between Gemini 3.1 Flash-Lite and Gemma 4 31B?

Key differences include LLM Stats Score (31.2 vs 33.4), context window (1.0M vs 262K), input pricing ($0.25 vs $0.13/M), licensing (Proprietary vs Apache 2.0). See the full comparison above for benchmark-by-benchmark results.

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