Model Comparison

Gemma 3 27B vs o3

o3 significantly outperforms across most benchmarks. Gemma 3 27B is 28.0x cheaper per token.

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Performance Benchmarks

Comparative analysis across standard metrics

1 benchmarks

Gemma 3 27B outperforms in 0 benchmarks, while o3 is better at 1 benchmark (GPQA).

o3 significantly outperforms across most benchmarks.

Thu Apr 16 2026 • llm-stats.com

Arena Performance

Human preference votes

Pricing Analysis

Price comparison per million tokens

Gemma 3 27B costs less

For input processing, Gemma 3 27B ($0.10/1M tokens) is 20.0x cheaper than o3 ($2.00/1M tokens).

For output processing, Gemma 3 27B ($0.20/1M tokens) is 40.0x cheaper than o3 ($8.00/1M tokens).

In conclusion, o3 is more expensive than Gemma 3 27B.*

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

Lowest available price from all providers
Thu Apr 16 2026 • llm-stats.com
Google
Gemma 3 27B
Input tokens$0.10
Output tokens$0.20
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 27B's 131,072 tokens. Gemma 3 27B can generate longer responses up to 131,072 tokens, while o3 is limited to 100,000 tokens.

Google
Gemma 3 27B
Input131,072 tokens
Output131,072 tokens
OpenAI
o3
Input200,000 tokens
Output100,000 tokens
Thu Apr 16 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

Both Gemma 3 27B and o3 support multimodal inputs.

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

Gemma 3 27B

Text
Images
Audio
Video

o3

Text
Images
Audio
Video

License

Usage and distribution terms

Gemma 3 27B 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 27B

Gemma

Open weights

o3

Proprietary

Closed source

Release Timeline

When each model was launched

Gemma 3 27B was released on 2025-03-12, while o3 was released on 2025-04-16.

o3 is 1 month newer than Gemma 3 27B.

Gemma 3 27B

Mar 12, 2025

1.1 years ago

o3

Apr 16, 2025

1.0 years ago

1mo newer

Knowledge Cutoff

When training data ends

o3 has a documented knowledge cutoff of 2024-05-31, while Gemma 3 27B's cutoff date is not specified.

We can confirm o3's training data extends to 2024-05-31, but cannot make a direct comparison without Gemma 3 27B's cutoff date.

Gemma 3 27B

—

o3

May 2024

Provider Availability

Gemma 3 27B is available from DeepInfra, Novita. o3 is available from OpenAI.

Gemma 3 27B

deepinfra logo
Deepinfra
Input Price:Input: $0.10/1MOutput Price:Output: $0.20/1M
novita logo
Novita
Input Price:Input: $0.11/1MOutput Price:Output: $0.20/1M

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 42.4%)
GoogleGemma 3 27B
OpenAIo3
Compare in Playground

Detailed Comparison

AI Model Comparison Table
Feature
Google
Gemma 3 27B
OpenAI
o3

FAQ

Common questions about Gemma 3 27B vs o3

o3 significantly outperforms across most benchmarks. Gemma 3 27B 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.
Gemma 3 27B scores GSM8k: 95.9%, IFEval: 90.4%, MATH: 89.0%, HumanEval: 87.8%, BIG-Bench Hard: 87.6%. o3 scores COLLIE: 98.4%, AIME 2024: 91.6%, ARC-AGI: 88.0%, MathVista: 86.8%, AIME 2025: 86.4%.
Gemma 3 27B is 20.0x cheaper for input tokens. Gemma 3 27B costs $0.10/M input and $0.20/M output via deepinfra. o3 costs $2.00/M input and $8.00/M output via openai.
Gemma 3 27B supports 131K tokens and o3 supports 200K tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.
Key differences include context window (131K vs 200K), input pricing ($0.10 vs $2.00/M), licensing (Gemma vs Proprietary). See the full comparison above for benchmark-by-benchmark results.
Gemma 3 27B is developed by Google and o3 is developed by OpenAI.