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Claude Opus 5.5 vs IBM Granite 4.0 Tiny Preview

Claude Opus 5.5 leads the LLM Stats Score 59.7 to -5.5.

Anthropic · IBM · Updated for 2026

Which is better?

Claude Opus 5.5 leads the overall LLM Stats Score 59.7 to -5.5, ranking #1 overall.

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

Choose Claude Opus 5.5

  • overall performance matters — it scores 59.7 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

Choose IBM Granite 4.0 Tiny Preview

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

At a glance

The differences that matter most.

Claude Opus 5.5
Anthropic
IBM Granite 4.0 Tiny Preview
IBM
Core performance indexes
LLM Stats Score
59.7
#1
-5.5
#364
Reasoning
57.8
#1
-5.5
#354
Coding
51.7
#1
3.0
#226
Cost, coverage & limits
Benchmark wins
—
—
Input price
$4.00 / M
— / M
Output price
$20.00 / M
— / M
Context window
1,000,000
—

Capability indexes

Additional strengths measured across groups of related public benchmarks

1 shared
Index
Claude Opus 5.5
IBM Granite 4.0 Tiny Preview
Math
42.5#5
-5.8#319
Conservative TrueSkill rating · higher is betterHow scores work

Individual benchmarks

31 reported for Claude Opus 5.5 · 12 for IBM Granite 4.0 Tiny Preview

No common benchmarks found

Claude Opus 5.5 and IBM Granite 4.0 Tiny Previewdon'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 Claude Opus 5.5 specifies input context (1,000,000 tokens). Only Claude Opus 5.5 specifies output context (128,000 tokens).

Anthropic
Claude Opus 5.5
Input1,000,000 tokens
Output128,000 tokens
IBM
IBM Granite 4.0 Tiny Preview
Input- tokens
Output- tokens
Tue Sep 22 2026 • llm-stats.com

Input capabilities

Documented input modalities across available providers

Claude Opus 5.5 supports multimodal inputs, whereas IBM Granite 4.0 Tiny Preview does not.

Claude Opus 5.5 can handle both text and other forms of data like images, making it suitable for multimodal applications.

Claude Opus 5.5

Text
Images
Audio
Video

IBM Granite 4.0 Tiny Preview

Text
Images
Audio
Video

License

Usage and distribution terms

Claude Opus 5.5 is licensed under a proprietary license, while IBM Granite 4.0 Tiny Preview uses Apache 2.0.

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

Claude Opus 5.5

Proprietary

Closed source

IBM Granite 4.0 Tiny Preview

Apache 2.0

Open weights

Release Timeline

When each model was launched

Claude Opus 5.5 was released on 2026-09-22, while IBM Granite 4.0 Tiny Preview was released on 2025-05-02.

Claude Opus 5.5 is 17 months newer than IBM Granite 4.0 Tiny Preview.

Claude Opus 5.5

Sep 22, 2026

0 days ago

1.4yr newer
IBM Granite 4.0 Tiny Preview

May 2, 2025

1.4 years ago

Knowledge Cutoff

When training data ends

Claude Opus 5.5 has a documented knowledge cutoff of 2026-06-01, while IBM Granite 4.0 Tiny Preview's cutoff date is not specified.

We can confirm Claude Opus 5.5's training data extends to 2026-06-01, but cannot make a direct comparison without IBM Granite 4.0 Tiny Preview's cutoff date.

Claude Opus 5.5

Jun 2026

IBM Granite 4.0 Tiny Preview

—

Outputs Comparison

Notice missing or incorrect data?Start an Issue discussion→

Judge for yourself.

Run your own prompts against Claude Opus 5.5 and IBM Granite 4.0 Tiny Preview side-by-side, then vote on the output you prefer.

Claude Opus 5.5
✓ Preferred
IBM Granite 4.0 Tiny Preview
Open in Playground

FAQ

Common questions about Claude Opus 5.5 vs IBM Granite 4.0 Tiny Preview.

Which is better, Claude Opus 5.5 or IBM Granite 4.0 Tiny Preview?

Claude Opus 5.5 leads the LLM Stats Score 59.7 to -5.5. Claude Opus 5.5 is made by Anthropic and IBM Granite 4.0 Tiny Preview is made by IBM. The best choice depends on your use case — compare their capability indexes, individual benchmarks, pricing, and limits above.

How does Claude Opus 5.5 compare to IBM Granite 4.0 Tiny Preview in benchmarks?

Claude Opus 5.5 scores BenchCAD (with Python tool): 96.2%, Global-MMLU: 94.3%, SWE-bench Multilingual: 93.9%, MILU: 93.1%, ArXivMath: 91.2%. IBM Granite 4.0 Tiny Preview scores AttaQ: 86.1%, HumanEval: 82.4%, HumanEval+: 78.3%, GSM8k: 70.1%, IFEval: 63.0%.

What are the context window sizes for Claude Opus 5.5 and IBM Granite 4.0 Tiny Preview?

Claude Opus 5.5 supports 1.0M tokens and IBM Granite 4.0 Tiny Preview 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 Claude Opus 5.5 and IBM Granite 4.0 Tiny Preview?

Key differences include LLM Stats Score (59.7 vs -5.5), multimodal support (yes vs no), licensing (Proprietary vs Apache 2.0). See the full comparison above for benchmark-by-benchmark results.

Who makes Claude Opus 5.5 and IBM Granite 4.0 Tiny Preview?

Claude Opus 5.5 is developed by Anthropic and IBM Granite 4.0 Tiny Preview is developed by IBM.

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