Model Comparison

Claude Sonnet 4.5 vs Gemini 3.5 Flash CyberWhich is better in 2026?

Comparing Claude Sonnet 4.5 and Gemini 3.5 Flash Cyber across benchmarks, pricing, and capabilities.

Verdict: Claude Sonnet 4.5 vs Gemini 3.5 Flash Cyber — which is better?

Claude Sonnet 4.5 (by Anthropic) and Gemini 3.5 Flash Cyber (by Google) are two of the AI models people compare most. Here is how they stack up on benchmarks, price and capabilities, and which one to pick in 2026.

Choose Claude Sonnet 4.5 if…

  • you want predictable pricing at $3.00/M input and $15.00/M output

Choose Gemini 3.5 Flash Cyber if…

  • you want the most recent training data — it shipped Jul 2026

Performance Benchmarks

Comparative analysis across standard metrics

No common benchmarks found

Claude Sonnet 4.5 and Gemini 3.5 Flash Cyberdon't have any common benchmark datasets to compare. They may have been evaluated on different testing suites.

Arena Performance

Human preference votes

Context Window

Maximum input and output token capacity

Only Claude Sonnet 4.5 specifies input context (200,000 tokens). Only Claude Sonnet 4.5 specifies output context (64,000 tokens).

Anthropic
Claude Sonnet 4.5
Input200,000 tokens
Output64,000 tokens
Google
Gemini 3.5 Flash Cyber
Input- tokens
Output- tokens
Tue Jul 21 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

Claude Sonnet 4.5 supports multimodal inputs, whereas Gemini 3.5 Flash Cyber does not.

Claude Sonnet 4.5 can handle both text and other forms of data like images, making it suitable for multimodal applications.

Claude Sonnet 4.5

Text
Images
Audio
Video

Gemini 3.5 Flash Cyber

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.

Claude Sonnet 4.5

Proprietary

Closed source

Gemini 3.5 Flash Cyber

Proprietary

Closed source

Release Timeline

When each model was launched

Claude Sonnet 4.5 was released on 2025-09-29, while Gemini 3.5 Flash Cyber was released on 2026-07-21.

Gemini 3.5 Flash Cyber is 10 months newer than Claude Sonnet 4.5.

Claude Sonnet 4.5

Sep 29, 2025

9 months ago

Gemini 3.5 Flash Cyber

Jul 21, 2026

0 days ago

9mo newer

Knowledge Cutoff

When training data ends

Claude Sonnet 4.5 has a documented knowledge cutoff of 2025-01-31, while Gemini 3.5 Flash Cyber's cutoff date is not specified.

We can confirm Claude Sonnet 4.5's training data extends to 2025-01-31, but cannot make a direct comparison without Gemini 3.5 Flash Cyber's cutoff date.

Claude Sonnet 4.5

Jan 2025

Gemini 3.5 Flash Cyber

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Outputs Comparison

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Key Takeaways

Anthropic
Larger context window (200,000 tokens)
Supports multimodal inputs
Google

No standout differentiators in the data we have for this pair.

Detailed Comparison

Interactive Arena

Judge for yourself.

Run your own prompts against Claude Sonnet 4.5 and Gemini 3.5 Flash Cyber side-by-side, then vote on the output you prefer.

Claude Sonnet 4.5
✓ Preferred
Gemini 3.5 Flash Cyber
Open in Playground
AI Model Comparison Table
Feature
Anthropic
Claude Sonnet 4.5
Google
Gemini 3.5 Flash Cyber

FAQ

Common questions about Claude Sonnet 4.5 vs Gemini 3.5 Flash Cyber.

Which is better, Claude Sonnet 4.5 or Gemini 3.5 Flash Cyber?

Claude Sonnet 4.5 (Anthropic) and Gemini 3.5 Flash Cyber (Google) each have strengths in different areas. Compare their benchmark scores, pricing, context windows, and capabilities above to determine which fits your needs.

How does Claude Sonnet 4.5 compare to Gemini 3.5 Flash Cyber in benchmarks?

Claude Sonnet 4.5 scores MMMLU: 89.1%, AIME 2025: 87.0%, TAU-bench Retail: 86.2%, GPQA: 83.4%, MMMUval: 77.8%. Gemini 3.5 Flash Cyber scores CyberGym: 83.2%.

What are the context window sizes for Claude Sonnet 4.5 and Gemini 3.5 Flash Cyber?

Claude Sonnet 4.5 supports 200K tokens and Gemini 3.5 Flash Cyber 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 Sonnet 4.5 and Gemini 3.5 Flash Cyber?

Key differences include multimodal support (yes vs no). See the full comparison above for benchmark-by-benchmark results.

Who makes Claude Sonnet 4.5 and Gemini 3.5 Flash Cyber?

Claude Sonnet 4.5 is developed by Anthropic and Gemini 3.5 Flash Cyber is developed by Google.

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