Claude 3 Opus vs Gemini 1.5 Flash 8B
Claude 3 Opus significantly outperforms across most benchmarks. Gemini 1.5 Flash 8B is 235.3x cheaper per token.
Anthropic · Google · Updated for 2026
Which is better?
Claude 3 Opus outperforms in 3 benchmarks (GPQA, MATH, MMLU-Pro), while Gemini 1.5 Flash 8B is better at 0 benchmarks. Claude 3 Opus significantly outperforms across most benchmarks.
On price, Gemini 1.5 Flash 8B is roughly 235.3x cheaper per token on a blended 3:1 input/output basis, which adds up quickly at production volume.
Gemini 1.5 Flash 8B also accepts a larger context window (1,048,576 input tokens), making it the stronger choice for long documents and large codebases.
Based on current benchmark, pricing, and model metadata for 2026.
Choose Claude 3 Opus
- you want the strongest raw capability — it leads on 3 of 3 shared benchmarks
Choose Gemini 1.5 Flash 8B
- cost matters — it's about 235.3x cheaper per token
- you process long inputs — it offers a 1,048,576 token context window
- you want the most recent training data — it shipped Mar 2024
At a glance
The differences that matter most.
Performance Benchmarks
Comparative analysis across standard metrics
Claude 3 Opus outperforms in 3 benchmarks (GPQA, MATH, MMLU-Pro), while Gemini 1.5 Flash 8B is better at 0 benchmarks.
Claude 3 Opus significantly outperforms across most benchmarks.
Arena Performance
Playground indexes and blind preference scores
Pricing Analysis
Price comparison per million tokens
For input processing, Claude 3 Opus ($15.00/1M tokens) is 214.3x more expensive than Gemini 1.5 Flash 8B ($0.07/1M tokens).
For output processing, Claude 3 Opus ($75.00/1M tokens) is 250.0x more expensive than Gemini 1.5 Flash 8B ($0.30/1M tokens).
In conclusion, Claude 3 Opus is more expensive than Gemini 1.5 Flash 8B.*
* Using a 3:1 ratio of input to output tokens
Context Window
Maximum input and output token capacity
Gemini 1.5 Flash 8B accepts 1,048,576 input tokens compared to Claude 3 Opus's 200,000 tokens. Claude 3 Opus can generate longer responses up to 200,000 tokens, while Gemini 1.5 Flash 8B is limited to 8,192 tokens.
Input Capabilities
Supported data types and modalities
Both Claude 3 Opus and Gemini 1.5 Flash 8B support multimodal inputs.
They are both capable of processing various types of data, offering versatility in application.
Claude 3 Opus
Gemini 1.5 Flash 8B
License
Usage and distribution terms
Both models are licensed under proprietary licenses.
Both models have usage restrictions defined by their respective organizations.
Proprietary
Closed source
Proprietary
Closed source
Release Timeline
When each model was launched
Claude 3 Opus was released on 2024-02-29, while Gemini 1.5 Flash 8B was released on 2024-03-15.
Gemini 1.5 Flash 8B is 1 month newer than Claude 3 Opus.
Feb 29, 2024
2.5 years ago
Mar 15, 2024
2.4 years ago
2w newerKnowledge Cutoff
When training data ends
Gemini 1.5 Flash 8B has a documented knowledge cutoff of 2024-10-01, while Claude 3 Opus's cutoff date is not specified.
We can confirm Gemini 1.5 Flash 8B's training data extends to 2024-10-01, but cannot make a direct comparison without Claude 3 Opus's cutoff date.
—
Oct 2024
Provider Availability
Claude 3 Opus is available from Anthropic, Bedrock, Google. Gemini 1.5 Flash 8B is available from Google.
Claude 3 Opus
Gemini 1.5 Flash 8B
Outputs Comparison
Judge for yourself.
Run your own prompts against Claude 3 Opus and Gemini 1.5 Flash 8B side-by-side, then vote on the output you prefer.
FAQ
Common questions about Claude 3 Opus vs Gemini 1.5 Flash 8B.