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Gemma 2 27B vs GPT-6 Astra

GPT-6 Astra leads the LLM Stats Score 60.7 to -0.6.

Google · OpenAI · Updated for 2026

Which is better?

GPT-6 Astra leads the overall LLM Stats Score 60.7 to -0.6, ranking #1 overall.

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

Choose Gemma 2 27B

  • you need open weights you can self-host or fine-tune

Choose GPT-6 Astra

  • overall performance matters — it scores 60.7 and ranks #1 on LLM Stats
  • your work emphasizes reasoning and coding — it leads those capability indexes
  • you want the most recent training data — it shipped Sep 2026

At a glance

The differences that matter most.

Gemma 2 27B
Google
GPT-6 Astra
OpenAI
Core performance indexes
LLM Stats Score
-0.6
#318
60.7
#1
Reasoning
-1.0
#314
58.7
#1
Coding
-7.9
#254
49.0
#1
Cost, coverage & limits
Benchmark wins
—
—
Input price
— / M
$10.00 / M
Output price
— / M
$50.00 / M
Context window
—
1,050,000

Capability indexes

Additional strengths measured across groups of related public benchmarks

1 shared
Index
Gemma 2 27B
GPT-6 Astra
Math
-0.3#289
35.3#42
Conservative TrueSkill rating · higher is betterHow scores work

Individual benchmarks

16 reported for Gemma 2 27B · 22 for GPT-6 Astra

No common benchmarks found

Gemma 2 27B and GPT-6 Astradon't have any common benchmark datasets to compare. They may have been evaluated on different testing suites.

Human preference

Blind head-to-head votes and playground preference scores

Context Window

Maximum input and output token capacity

Only GPT-6 Astra specifies input context (1,050,000 tokens). Only GPT-6 Astra specifies output context (128,000 tokens).

Google
Gemma 2 27B
Input- tokens
Output- tokens
OpenAI
GPT-6 Astra
Input1,050,000 tokens
Output128,000 tokens
Fri Sep 04 2026 • llm-stats.com

Input capabilities

Documented input modalities across available providers

GPT-6 Astra supports multimodal inputs, whereas Gemma 2 27B does not.

GPT-6 Astra can handle both text and other forms of data like images, making it suitable for multimodal applications.

Gemma 2 27B

Text
Images
Audio
Video

GPT-6 Astra

Text
Images
Audio
Video

License

Usage and distribution terms

Gemma 2 27B is licensed under Gemma, while GPT-6 Astra uses a proprietary license.

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

Gemma 2 27B

Gemma

Open weights

GPT-6 Astra

Proprietary

Closed source

Release Timeline

When each model was launched

Gemma 2 27B was released on 2024-06-27, while GPT-6 Astra was released on 2026-09-03.

GPT-6 Astra is 27 months newer than Gemma 2 27B.

Gemma 2 27B

Jun 27, 2024

2.2 years ago

GPT-6 Astra

Sep 3, 2026

0 days ago

2.2yr newer

Knowledge Cutoff

When training data ends

GPT-6 Astra has a documented knowledge cutoff of 2026-04-30, while Gemma 2 27B's cutoff date is not specified.

We can confirm GPT-6 Astra's training data extends to 2026-04-30, but cannot make a direct comparison without Gemma 2 27B's cutoff date.

Gemma 2 27B

—

GPT-6 Astra

Apr 2026

Outputs Comparison

Notice missing or incorrect data?Start an Issue discussion→

Judge for yourself.

Run your own prompts against Gemma 2 27B and GPT-6 Astra side-by-side, then vote on the output you prefer.

Gemma 2 27B
✓ Preferred
GPT-6 Astra
Open in Playground

FAQ

Common questions about Gemma 2 27B vs GPT-6 Astra.

Which is better, Gemma 2 27B or GPT-6 Astra?

GPT-6 Astra leads the LLM Stats Score 60.7 to -0.6. Gemma 2 27B is made by Google and GPT-6 Astra is made by OpenAI. The best choice depends on your use case — compare their capability indexes, individual benchmarks, pricing, and limits above.

How does Gemma 2 27B compare to GPT-6 Astra in benchmarks?

Gemma 2 27B scores ARC-E: 88.6%, HellaSwag: 86.4%, BoolQ: 84.8%, TriviaQA: 83.7%, Winogrande: 83.7%. GPT-6 Astra scores ExploitBench: 100.0%, ARC-AGI-3: 99.9%, ARC-AGI: 98.5%, FrontierMath Tier 4 (v2): 97.6%, GPQA: 96.0%.

What are the context window sizes for Gemma 2 27B and GPT-6 Astra?

Gemma 2 27B supports an unknown number of tokens and GPT-6 Astra supports 1.1M tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.

What are the main differences between Gemma 2 27B and GPT-6 Astra?

Key differences include LLM Stats Score (-0.6 vs 60.7), multimodal support (no vs yes), licensing (Gemma vs Proprietary). See the full comparison above for benchmark-by-benchmark results.

Who makes Gemma 2 27B and GPT-6 Astra?

Gemma 2 27B is developed by Google and GPT-6 Astra is developed by OpenAI.

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