Model Comparison

Gemma 3 12B vs GPT OSS 120B

GPT OSS 120B significantly outperforms across most benchmarks. Gemma 3 12B is 2.9x cheaper per token.

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Performance Benchmarks

Comparative analysis across standard metrics

1 benchmarks

Gemma 3 12B outperforms in 0 benchmarks, while GPT OSS 120B is better at 1 benchmark (GPQA).

GPT OSS 120B significantly outperforms across most benchmarks.

Tue May 19 2026 • llm-stats.com

Arena Performance

Human preference votes

Pricing Analysis

Price comparison per million tokens

Gemma 3 12B costs less

For input processing, Gemma 3 12B ($0.05/1M tokens) is 1.8x cheaper than GPT OSS 120B ($0.09/1M tokens).

For output processing, Gemma 3 12B ($0.10/1M tokens) is 4.5x cheaper than GPT OSS 120B ($0.45/1M tokens).

In conclusion, GPT OSS 120B is more expensive than Gemma 3 12B.*

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

Lowest available price from all providers
Tue May 19 2026 • llm-stats.com
Google
Gemma 3 12B
Input tokens$0.05
Output tokens$0.10
Best providerDeepinfra
OpenAI
GPT OSS 120B
Input tokens$0.09
Output tokens$0.45
Best providerDeepinfra
Notice missing or incorrect data?Start an Issue→

Model Size

Parameter count comparison

104.8B diff

GPT OSS 120B has 104.8B more parameters than Gemma 3 12B, making it 873.3% larger.

Google
Gemma 3 12B
12.0Bparameters
OpenAI
GPT OSS 120B
116.8Bparameters
12.0B
Gemma 3 12B
116.8B
GPT OSS 120B

Context Window

Maximum input and output token capacity

Both models have the same input context window of 131,072 tokens. Both models can generate responses up to 131,072 tokens.

Google
Gemma 3 12B
Input131,072 tokens
Output131,072 tokens
OpenAI
GPT OSS 120B
Input131,072 tokens
Output131,072 tokens
Tue May 19 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

Gemma 3 12B supports multimodal inputs, whereas GPT OSS 120B does not.

Gemma 3 12B can handle both text and other forms of data like images, making it suitable for multimodal applications.

Gemma 3 12B

Text
Images
Audio
Video

GPT OSS 120B

Text
Images
Audio
Video

License

Usage and distribution terms

Gemma 3 12B is licensed under Gemma, while GPT OSS 120B uses Apache 2.0.

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

Gemma 3 12B

Gemma

Open weights

GPT OSS 120B

Apache 2.0

Open weights

Release Timeline

When each model was launched

Gemma 3 12B was released on 2025-03-12, while GPT OSS 120B was released on 2025-08-05.

GPT OSS 120B is 5 months newer than Gemma 3 12B.

Gemma 3 12B

Mar 12, 2025

1.2 years ago

GPT OSS 120B

Aug 5, 2025

9 months ago

4mo newer

Knowledge Cutoff

When training data ends

Neither model specifies a knowledge cutoff date.

Unable to compare the recency of their training data.

No cutoff dates available

Provider Availability

Gemma 3 12B is available from DeepInfra. GPT OSS 120B is available from DeepInfra, Novita, OpenAI, Fireworks, Groq.

Gemma 3 12B

deepinfra logo
Deepinfra
Input Price:Input: $0.05/1MOutput Price:Output: $0.10/1M

GPT OSS 120B

deepinfra logo
Deepinfra
Input Price:Input: $0.09/1MOutput Price:Output: $0.45/1M
novita logo
Novita
Input Price:Input: $0.10/1MOutput Price:Output: $0.50/1M
openai logo
OpenAI
Input Price:Input: $0.10/1MOutput Price:Output: $0.50/1M
fireworks logo
Fireworks
Input Price:Input: $0.15/1MOutput Price:Output: $0.60/1M
groq logo
Groq
Input Price:Input: $0.15/1MOutput Price:Output: $0.60/1M
* Prices shown are per million tokens

Outputs Comparison

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Key Takeaways

Google
Supports multimodal inputs
Less expensive input tokens
Less expensive output tokens
OpenAI
Higher GPQA score (80.1% vs 40.9%)

Detailed Comparison

AI Model Comparison Table
Feature
Google
Gemma 3 12B
OpenAI
GPT OSS 120B

FAQ

Common questions about Gemma 3 12B vs GPT OSS 120B.

Which is better, Gemma 3 12B or GPT OSS 120B?

GPT OSS 120B significantly outperforms across most benchmarks. Gemma 3 12B is made by Google and GPT OSS 120B is made by OpenAI. The best choice depends on your use case — compare their benchmark scores, pricing, and capabilities above.

How does Gemma 3 12B compare to GPT OSS 120B in benchmarks?

Gemma 3 12B scores GSM8k: 94.4%, IFEval: 88.9%, DocVQA: 87.1%, BIG-Bench Hard: 85.7%, HumanEval: 85.4%. GPT OSS 120B scores MMLU: 90.0%, CodeForces: 82.1%, GPQA: 80.1%, TAU-bench Retail: 67.8%, HealthBench: 57.6%.

Is Gemma 3 12B cheaper than GPT OSS 120B?

Gemma 3 12B is 1.8x cheaper for input tokens. Gemma 3 12B costs $0.05/M input and $0.10/M output via deepinfra. GPT OSS 120B costs $0.09/M input and $0.45/M output via deepinfra.

What are the context window sizes for Gemma 3 12B and GPT OSS 120B?

Gemma 3 12B supports 131K tokens and GPT OSS 120B supports 131K tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.

What are the main differences between Gemma 3 12B and GPT OSS 120B?

Key differences include input pricing ($0.05 vs $0.09/M), multimodal support (yes vs no), licensing (Gemma vs Apache 2.0). See the full comparison above for benchmark-by-benchmark results.

Who makes Gemma 3 12B and GPT OSS 120B?

Gemma 3 12B is developed by Google and GPT OSS 120B is developed by OpenAI.