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GPT-6 Astra vs Granite 3.3 8B Base

GPT-6 Astra leads the LLM Stats Score 58.5 to -0.6.

OpenAI · IBM · Updated for 2026

Which is better?

GPT-6 Astra leads the overall LLM Stats Score 58.5 to -0.6, ranking #3 overall.

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

Choose GPT-6 Astra

  • overall performance matters — it scores 58.5 and ranks #3 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

Choose Granite 3.3 8B Base

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

At a glance

The differences that matter most.

GPT-6 Astra
OpenAI
Granite 3.3 8B Base
IBM
Core performance indexes
LLM Stats Score
58.5
#3
-0.6
#345
Reasoning
57.3
#2
-0.7
#339
Coding
47.1
#3
11.0
#174
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

1 shared
Index
GPT-6 Astra
Granite 3.3 8B Base
Math
33.5#56
-0.8#304
Conservative TrueSkill rating · higher is betterHow scores work

Individual benchmarks

22 reported for GPT-6 Astra · 20 for Granite 3.3 8B Base

No common benchmarks found

GPT-6 Astra and Granite 3.3 8B Basedon'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
IBM
Granite 3.3 8B Base
Input- tokens
Output- tokens
Tue Oct 13 2026 • llm-stats.com

Input capabilities

Documented input modalities across available providers

Both GPT-6 Astra and Granite 3.3 8B Base support multimodal inputs.

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

GPT-6 Astra

Text
Images
Audio
Video

Granite 3.3 8B Base

Text
Images
Audio
Video

License

Usage and distribution terms

GPT-6 Astra is licensed under a proprietary license, while Granite 3.3 8B Base uses Apache 2.0.

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

GPT-6 Astra

Proprietary

Closed source

Granite 3.3 8B Base

Apache 2.0

Open weights

Release Timeline

When each model was launched

GPT-6 Astra was released on 2026-09-04, while Granite 3.3 8B Base was released on 2025-04-16.

GPT-6 Astra is 17 months newer than Granite 3.3 8B Base.

GPT-6 Astra

Sep 4, 2026

1 months ago

1.4yr newer
Granite 3.3 8B Base

Apr 16, 2025

1.5 years ago

Knowledge Cutoff

When training data ends

GPT-6 Astra has a knowledge cutoff of 2026-04-30, while Granite 3.3 8B Base has a cutoff of 2024-04-01.

GPT-6 Astra has more recent training data (up to 2026-04-30), making it potentially better informed about events through that date compared to Granite 3.3 8B Base (2024-04-01).

GPT-6 Astra

Apr 2026

2 yr newer
Granite 3.3 8B Base

Apr 2024

Outputs Comparison

Notice missing or incorrect data?

Judge for yourself.

Run your own prompts against GPT-6 Astra and Granite 3.3 8B Base side-by-side, then vote on the output you prefer.

GPT-6 Astra
✓ Preferred
Granite 3.3 8B Base
Open in Playground

FAQ

Common questions about GPT-6 Astra vs Granite 3.3 8B Base.

Which is better, GPT-6 Astra or Granite 3.3 8B Base?

GPT-6 Astra leads the LLM Stats Score 58.5 to -0.6. GPT-6 Astra is made by OpenAI and Granite 3.3 8B Base is made by IBM. 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 Granite 3.3 8B Base 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%. Granite 3.3 8B Base scores HumanEval: 89.7%, AttaQ: 88.5%, HumanEval+: 86.1%, AIME 2024: 81.2%, HellaSwag: 80.1%.

What are the context window sizes for GPT-6 Astra and Granite 3.3 8B Base?

GPT-6 Astra supports 1.1M tokens and Granite 3.3 8B Base 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 Granite 3.3 8B Base?

Key differences include LLM Stats Score (58.5 vs -0.6), licensing (Proprietary vs Apache 2.0). See the full comparison above for benchmark-by-benchmark results.

Who makes GPT-6 Astra and Granite 3.3 8B Base?

GPT-6 Astra is developed by OpenAI and Granite 3.3 8B Base is developed by IBM.

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