Model Comparison

Claude Sonnet 4.5 vs Gemini 2.0 Flash-Lite

Claude Sonnet 4.5 significantly outperforms across most benchmarks. Gemini 2.0 Flash-Lite is 47.1x cheaper per token.

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Performance Benchmarks

Comparative analysis across standard metrics

1 benchmarks

Claude Sonnet 4.5 outperforms in 1 benchmarks (GPQA), while Gemini 2.0 Flash-Lite is better at 0 benchmarks.

Claude Sonnet 4.5 significantly outperforms across most benchmarks.

Tue May 12 2026 • llm-stats.com

Arena Performance

Human preference votes

Pricing Analysis

Price comparison per million tokens

Gemini 2.0 Flash-Lite costs less

For input processing, Claude Sonnet 4.5 ($3.00/1M tokens) is 42.9x more expensive than Gemini 2.0 Flash-Lite ($0.07/1M tokens).

For output processing, Claude Sonnet 4.5 ($15.00/1M tokens) is 50.0x more expensive than Gemini 2.0 Flash-Lite ($0.30/1M tokens).

In conclusion, Claude Sonnet 4.5 is more expensive than Gemini 2.0 Flash-Lite.*

* Using a 3:1 ratio of input to output tokens

Lowest available price from all providers

Tue May 12 2026 • llm-stats.com

Claude Sonnet 4.5

Input tokens$3.00

Output tokens$15.00

Best providerAnthropic

Gemini 2.0 Flash-Lite

Input tokens$0.07

Output tokens$0.30

Best providerGoogle

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Context Window

Maximum input and output token capacity

Gemini 2.0 Flash-Lite accepts 1,048,576 input tokens compared to Claude Sonnet 4.5's 200,000 tokens. Claude Sonnet 4.5 can generate longer responses up to 64,000 tokens, while Gemini 2.0 Flash-Lite is limited to 8,192 tokens.

Claude Sonnet 4.5

Input200,000 tokens

Output64,000 tokens

Gemini 2.0 Flash-Lite

Input1,048,576 tokens

Output8,192 tokens

Tue May 12 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

Both Claude Sonnet 4.5 and Gemini 2.0 Flash-Lite support multimodal inputs.

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

Claude Sonnet 4.5

Text

Images

Audio

Video

Gemini 2.0 Flash-Lite

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 2.0 Flash-Lite

Proprietary

Closed source

Release Timeline

When each model was launched

Claude Sonnet 4.5 was released on 2025-09-29, while Gemini 2.0 Flash-Lite was released on 2025-02-05.

Claude Sonnet 4.5 is 8 months newer than Gemini 2.0 Flash-Lite.

Claude Sonnet 4.5

Sep 29, 2025

7 months ago

7mo newer

Gemini 2.0 Flash-Lite

Feb 5, 2025

1.3 years ago

Knowledge Cutoff

When training data ends

Claude Sonnet 4.5 has a knowledge cutoff of 2025-01-31, while Gemini 2.0 Flash-Lite has a cutoff of 2024-06-01.

Claude Sonnet 4.5 has more recent training data (up to 2025-01-31), making it potentially better informed about events through that date compared to Gemini 2.0 Flash-Lite (2024-06-01).

Claude Sonnet 4.5

Jan 2025

7 mo newer

Gemini 2.0 Flash-Lite

Jun 2024

Provider Availability

Claude Sonnet 4.5 is available from Anthropic. Gemini 2.0 Flash-Lite is available from Google.

Claude Sonnet 4.5

Anthropic

Input Price:Input: $3.00/1MOutput Price:Output: $15.00/1M

Gemini 2.0 Flash-Lite

Google

Input Price:Input: $0.07/1MOutput Price:Output: $0.30/1M

* Prices shown are per million tokens

Outputs Comparison

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Key Takeaways

Claude Sonnet 4.5

View details

Anthropic

Higher GPQA score (83.4% vs 51.5%)

Gemini 2.0 Flash-Lite

View details

Google

Larger context window (1,048,576 tokens)

Less expensive input tokens

Less expensive output tokens

Detailed Comparison

AI Model Comparison Table
Feature	Claude Sonnet 4.5	Gemini 2.0 Flash-Lite

FAQ

Common questions about Claude Sonnet 4.5 vs Gemini 2.0 Flash-Lite.

Which is better, Claude Sonnet 4.5 or Gemini 2.0 Flash-Lite?

Claude Sonnet 4.5 significantly outperforms across most benchmarks. Claude Sonnet 4.5 is made by Anthropic and Gemini 2.0 Flash-Lite is made by Google. The best choice depends on your use case — compare their benchmark scores, pricing, and capabilities above.

How does Claude Sonnet 4.5 compare to Gemini 2.0 Flash-Lite 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 2.0 Flash-Lite scores MATH: 86.8%, FACTS Grounding: 83.6%, Global-MMLU-Lite: 78.2%, MMLU-Pro: 71.6%, MMMU: 68.0%.

Is Claude Sonnet 4.5 cheaper than Gemini 2.0 Flash-Lite?

Gemini 2.0 Flash-Lite is 42.9x cheaper for input tokens. Claude Sonnet 4.5 costs $3.00/M input and $15.00/M output via anthropic. Gemini 2.0 Flash-Lite costs $0.07/M input and $0.30/M output via google.

What are the context window sizes for Claude Sonnet 4.5 and Gemini 2.0 Flash-Lite?

Claude Sonnet 4.5 supports 200K tokens and Gemini 2.0 Flash-Lite supports 1.0M 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 2.0 Flash-Lite?

Key differences include context window (200K vs 1.0M), input pricing ($3.00 vs $0.07/M). See the full comparison above for benchmark-by-benchmark results.

Who makes Claude Sonnet 4.5 and Gemini 2.0 Flash-Lite?

Claude Sonnet 4.5 is developed by Anthropic and Gemini 2.0 Flash-Lite is developed by Google.