Claude Opus 4.5 vs Gemini 1.5 Flash 8B Comparison

Comparing Claude Opus 4.5 and Gemini 1.5 Flash 8B across benchmarks, pricing, and capabilities.

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Performance Benchmarks

Comparative analysis across standard metrics

1 benchmarks

Claude Opus 4.5 outperforms in 1 benchmarks (GPQA), while Gemini 1.5 Flash 8B is better at 0 benchmarks.

Claude Opus 4.5 significantly outperforms across most benchmarks.

Sat Mar 14 2026 • llm-stats.com

Arena Performance

Human preference votes

Pricing Analysis

Price comparison per million tokens

Gemini 1.5 Flash 8B costs less

For input processing, Claude Opus 4.5 ($5.00/1M tokens) is 71.4x more expensive than Gemini 1.5 Flash 8B ($0.07/1M tokens).

For output processing, Claude Opus 4.5 ($25.00/1M tokens) is 83.3x more expensive than Gemini 1.5 Flash 8B ($0.30/1M tokens).

In conclusion, Claude Opus 4.5 is more expensive than Gemini 1.5 Flash 8B.*

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

Lowest available price from all providers

Sat Mar 14 2026 • llm-stats.com

Claude Opus 4.5

Input tokens$5.00

Output tokens$25.00

Best providerAnthropic

Gemini 1.5 Flash 8B

Input tokens$0.07

Output tokens$0.30

Best providerGoogle

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Context Window

Maximum input and output token capacity

Gemini 1.5 Flash 8B accepts 1,048,576 input tokens compared to Claude Opus 4.5's 200,000 tokens. Claude Opus 4.5 can generate longer responses up to 64,000 tokens, while Gemini 1.5 Flash 8B is limited to 8,192 tokens.

Claude Opus 4.5

Input200,000 tokens

Output64,000 tokens

Gemini 1.5 Flash 8B

Input1,048,576 tokens

Output8,192 tokens

Sat Mar 14 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

Both Claude Opus 4.5 and Gemini 1.5 Flash 8B support multimodal inputs.

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

Claude Opus 4.5

Text

Images

Audio

Video

Gemini 1.5 Flash 8B

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 Opus 4.5

Proprietary

Closed source

Gemini 1.5 Flash 8B

Proprietary

Closed source

Release Timeline

When each model was launched

Claude Opus 4.5 was released on 2025-11-24, while Gemini 1.5 Flash 8B was released on 2024-03-15.

Claude Opus 4.5 is 21 months newer than Gemini 1.5 Flash 8B.

Claude Opus 4.5

Nov 24, 2025

3 months ago

1.7yr newer

Gemini 1.5 Flash 8B

Mar 15, 2024

2.0 years ago

Knowledge Cutoff

When training data ends

Claude Opus 4.5 has a knowledge cutoff of 2025-03-31, while Gemini 1.5 Flash 8B has a cutoff of 2024-10-01.

Claude Opus 4.5 has more recent training data (up to 2025-03-31), making it potentially better informed about events through that date compared to Gemini 1.5 Flash 8B (2024-10-01).

Claude Opus 4.5

Mar 2025

5 mo newer

Gemini 1.5 Flash 8B

Oct 2024

Provider Availability

Claude Opus 4.5 is available from Anthropic. Gemini 1.5 Flash 8B is available from Google. The availability of providers can affect quality of the model and reliability.