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GPT-6 Astra vs Nova 2 Omni

GPT-6 Astra leads the LLM Stats Score 60.7 to 25.9.

OpenAI · Amazon · Updated for 2026

Which is better?

GPT-6 Astra leads the overall LLM Stats Score 60.7 to 25.9, ranking #1 overall.

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

Choose GPT-6 Astra

  • overall performance matters — it scores 60.7 and ranks #1 on LLM Stats
  • your work emphasizes reasoning and agents — it leads those capability indexes

Choose Nova 2 Omni

  • you are already invested in the Amazon ecosystem

At a glance

The differences that matter most.

GPT-6 Astra
OpenAI
Nova 2 Omni
Amazon
Core performance indexes
LLM Stats Score
60.7
#1
25.9
#145
Reasoning
58.7
#1
28.2
#121
Agents
46.4
#1
4.5
#146
Cost, coverage & limits
Benchmark wins
—
—
Input price
$10.00 / M
— / M
Output price
$50.00 / M
— / M
Context window
1,050,000
—

Capability indexes

Additional strengths measured across groups of related public benchmarks

4 shared
Index
GPT-6 Astra
Nova 2 Omni
Math
35.3#42
25.3#106
Vision
41.5#1
7.9#135
Tool use
36.6#1
16.3#81
Multimodal
38.6#3
9.3#118
Conservative TrueSkill rating · higher is betterHow scores work

Individual benchmarks

22 reported for GPT-6 Astra · 18 for Nova 2 Omni

No common benchmarks found

GPT-6 Astra and Nova 2 Omnidon'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).

OpenAI
GPT-6 Astra
Input1,050,000 tokens
Output128,000 tokens
Amazon
Nova 2 Omni
Input- tokens
Output- tokens
Fri Sep 04 2026 • llm-stats.com

Input capabilities

Documented input modalities across available providers

Both GPT-6 Astra and Nova 2 Omni support multimodal inputs.

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

GPT-6 Astra

Text
Images
Audio
Video

Nova 2 Omni

Text
Images
Audio
Video

License

Usage and distribution terms

Both models are licensed under proprietary licenses.

Both models have usage restrictions defined by their respective organizations.

GPT-6 Astra

Proprietary

Closed source

Nova 2 Omni

Proprietary

Closed source

Release Timeline

When each model was launched

Nova 2 Omni was released on 2025-12-02, while GPT-6 Astra's release date is not specified.

We can confirm Nova 2 Omni's release timeline, but cannot make a direct age comparison without GPT-6 Astra's release date.

GPT-6 Astra

—

Nova 2 Omni

Dec 2, 2025

9 months ago

Knowledge Cutoff

When training data ends

GPT-6 Astra has a documented knowledge cutoff of 2026-04-30, while Nova 2 Omni'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 Nova 2 Omni's cutoff date.

GPT-6 Astra

Apr 2026

Nova 2 Omni

—

Outputs Comparison

Notice missing or incorrect data?Start an Issue discussion→

Judge for yourself.

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

GPT-6 Astra
✓ Preferred
Nova 2 Omni
Open in Playground

FAQ

Common questions about GPT-6 Astra vs Nova 2 Omni.

Which is better, GPT-6 Astra or Nova 2 Omni?

GPT-6 Astra leads the LLM Stats Score 60.7 to 25.9. GPT-6 Astra is made by OpenAI and Nova 2 Omni is made by Amazon. The best choice depends on your use case — compare their capability indexes, individual benchmarks, pricing, and limits above.

How does GPT-6 Astra compare to Nova 2 Omni in benchmarks?

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%. Nova 2 Omni scores AIME 2025: 92.1%, RefCOCOg: 86.3%, ScreenSpot: 85.4%, MMLU-Pro: 80.7%, Tau2 Telecom: 80.0%.

What are the context window sizes for GPT-6 Astra and Nova 2 Omni?

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

What are the main differences between GPT-6 Astra and Nova 2 Omni?

Key differences include LLM Stats Score (60.7 vs 25.9). See the full comparison above for benchmark-by-benchmark results.

Who makes GPT-6 Astra and Nova 2 Omni?

GPT-6 Astra is developed by OpenAI and Nova 2 Omni is developed by Amazon.

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