Model Comparison

Gemma 3 4B vs o3Which is better in 2026?

o3 significantly outperforms across most benchmarks. Gemma 3 4B is 140.0x cheaper per token.

Verdict: Gemma 3 4B vs o3 — which is better?

Gemma 3 4B (by Google) and o3 (by OpenAI) are two of the AI models people compare most. Here is how they stack up on benchmarks, price and capabilities, and which one to pick in 2026.

Gemma 3 4B outperforms in 0 benchmarks, while o3 is better at 1 benchmark (GPQA). o3 significantly outperforms across most benchmarks.

On price, Gemma 3 4B is roughly 140.0x cheaper per token on a blended 3:1 input/output basis, which adds up quickly at production volume.

o3 also accepts a larger context window (200,000 input tokens), making it the stronger choice for long documents and large codebases.

Choose Gemma 3 4B if…

  • cost matters — it's about 140.0x cheaper per token
  • you need open weights you can self-host or fine-tune

Choose o3 if…

  • you want the strongest raw capability — it leads on 1 of 1 shared benchmarks
  • you process long inputs — it offers a 200,000 token context window
  • you want the most recent training data — it shipped Apr 2025
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Performance Benchmarks

Comparative analysis across standard metrics

1 benchmarks

Gemma 3 4B outperforms in 0 benchmarks, while o3 is better at 1 benchmark (GPQA).

o3 significantly outperforms across most benchmarks.

Tue Jun 09 2026 • llm-stats.com

Arena Performance

Human preference votes

Pricing Analysis

Price comparison per million tokens

Gemma 3 4B costs less

For input processing, Gemma 3 4B ($0.02/1M tokens) is 100.0x cheaper than o3 ($2.00/1M tokens).

For output processing, Gemma 3 4B ($0.04/1M tokens) is 200.0x cheaper than o3 ($8.00/1M tokens).

In conclusion, o3 is more expensive than Gemma 3 4B.*

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

Lowest available price from all providers
Tue Jun 09 2026 • llm-stats.com
Google
Gemma 3 4B
Input tokens$0.02
Output tokens$0.04
Best providerDeepinfra
OpenAI
o3
Input tokens$2.00
Output tokens$8.00
Best providerOpenAI
Notice missing or incorrect data?Start an Issue→

Context Window

Maximum input and output token capacity

o3 accepts 200,000 input tokens compared to Gemma 3 4B's 131,072 tokens. Gemma 3 4B can generate longer responses up to 131,072 tokens, while o3 is limited to 100,000 tokens.

Google
Gemma 3 4B
Input131,072 tokens
Output131,072 tokens
OpenAI
o3
Input200,000 tokens
Output100,000 tokens
Tue Jun 09 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

Both Gemma 3 4B and o3 support multimodal inputs.

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

Gemma 3 4B

Text
Images
Audio
Video

o3

Text
Images
Audio
Video

License

Usage and distribution terms

Gemma 3 4B is licensed under Gemma, while o3 uses a proprietary license.

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

Gemma 3 4B

Gemma

Open weights

o3

Proprietary

Closed source

Release Timeline

When each model was launched

Gemma 3 4B was released on 2025-03-12, while o3 was released on 2025-04-16.

o3 is 1 month newer than Gemma 3 4B.

Gemma 3 4B

Mar 12, 2025

1.2 years ago

o3

Apr 16, 2025

1.1 years ago

1mo newer

Knowledge Cutoff

When training data ends

Gemma 3 4B has a knowledge cutoff of 2024-08-01, while o3 has a cutoff of 2024-05-31.

Gemma 3 4B has more recent training data (up to 2024-08-01), making it potentially better informed about events through that date compared to o3 (2024-05-31).

Gemma 3 4B

Aug 2024

3 mo newer
o3

May 2024

Provider Availability

Gemma 3 4B is available from DeepInfra. o3 is available from OpenAI.

Gemma 3 4B

deepinfra logo
Deepinfra
Input Price:Input: $0.02/1MOutput Price:Output: $0.04/1M

o3

openai logo
OpenAI
Input Price:Input: $2.00/1MOutput Price:Output: $8.00/1M
* Prices shown are per million tokens

Outputs Comparison

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Key Takeaways

Google
Less expensive input tokens
Less expensive output tokens
Has open weights
OpenAI
Larger context window (200,000 tokens)
Higher GPQA score (83.3% vs 30.8%)
GoogleGemma 3 4B
OpenAIo3
Compare in Playground

Detailed Comparison

AI Model Comparison Table
Feature
Google
Gemma 3 4B
OpenAI
o3

FAQ

Common questions about Gemma 3 4B vs o3.

Which is better, Gemma 3 4B or o3?

o3 significantly outperforms across most benchmarks. Gemma 3 4B is made by Google and o3 is made by OpenAI. The best choice depends on your use case — compare their benchmark scores, pricing, and capabilities above.

How does Gemma 3 4B compare to o3 in benchmarks?

Gemma 3 4B scores IFEval: 90.2%, GSM8k: 89.2%, DocVQA: 75.8%, MATH: 75.6%, AI2D: 74.8%. o3 scores COLLIE: 98.4%, AIME 2024: 91.6%, ARC-AGI: 88.0%, MathVista: 86.8%, AIME 2025: 86.4%.

Is Gemma 3 4B cheaper than o3?

Gemma 3 4B is 100.0x cheaper for input tokens. Gemma 3 4B costs $0.02/M input and $0.04/M output via deepinfra. o3 costs $2.00/M input and $8.00/M output via openai.

What are the context window sizes for Gemma 3 4B and o3?

Gemma 3 4B supports 131K tokens and o3 supports 200K 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 4B and o3?

Key differences include context window (131K vs 200K), input pricing ($0.02 vs $2.00/M), licensing (Gemma vs Proprietary). See the full comparison above for benchmark-by-benchmark results.

Who makes Gemma 3 4B and o3?

Gemma 3 4B is developed by Google and o3 is developed by OpenAI.

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