Model Comparison
Claude 3 Opus vs Gemini 2.5 Pro Preview 06-05Which is better in 2026?
Gemini 2.5 Pro Preview 06-05 significantly outperforms across most benchmarks. Gemini 2.5 Pro Preview 06-05 is 8.7x cheaper per token.
Verdict: Claude 3 Opus vs Gemini 2.5 Pro Preview 06-05 — which is better?
Claude 3 Opus (by Anthropic) and Gemini 2.5 Pro Preview 06-05 (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.
Claude 3 Opus outperforms in 0 benchmarks, while Gemini 2.5 Pro Preview 06-05 is better at 1 benchmark (GPQA). Gemini 2.5 Pro Preview 06-05 significantly outperforms across most benchmarks.
On price, Gemini 2.5 Pro Preview 06-05 is roughly 8.7x cheaper per token on a blended 3:1 input/output basis, which adds up quickly at production volume.
Gemini 2.5 Pro Preview 06-05 also accepts a larger context window (1,048,576 input tokens), making it the stronger choice for long documents and large codebases.
Choose Claude 3 Opus if…
- you want predictable pricing at $15.00/M input and $75.00/M output
Choose Gemini 2.5 Pro Preview 06-05 if…
- you want the strongest raw capability — it leads on 1 of 1 shared benchmarks
- cost matters — it's about 8.7x 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 Jun 2025
Performance Benchmarks
Comparative analysis across standard metrics
Claude 3 Opus outperforms in 0 benchmarks, while Gemini 2.5 Pro Preview 06-05 is better at 1 benchmark (GPQA).
Gemini 2.5 Pro Preview 06-05 significantly outperforms across most benchmarks.
Arena Performance
Human preference votes
Pricing Analysis
Price comparison per million tokens
For input processing, Claude 3 Opus ($15.00/1M tokens) is 12.0x more expensive than Gemini 2.5 Pro Preview 06-05 ($1.25/1M tokens).
For output processing, Claude 3 Opus ($75.00/1M tokens) is 7.5x more expensive than Gemini 2.5 Pro Preview 06-05 ($10.00/1M tokens).
In conclusion, Claude 3 Opus is more expensive than Gemini 2.5 Pro Preview 06-05.*
* Using a 3:1 ratio of input to output tokens
Context Window
Maximum input and output token capacity
Gemini 2.5 Pro Preview 06-05 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 2.5 Pro Preview 06-05 is limited to 65,535 tokens.
Input Capabilities
Supported data types and modalities
Both Claude 3 Opus and Gemini 2.5 Pro Preview 06-05 support multimodal inputs.
They are both capable of processing various types of data, offering versatility in application.
Claude 3 Opus
Gemini 2.5 Pro Preview 06-05
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 2.5 Pro Preview 06-05 was released on 2025-06-05.
Gemini 2.5 Pro Preview 06-05 is 15 months newer than Claude 3 Opus.
Feb 29, 2024
2.3 years ago
Jun 5, 2025
1.0 years ago
1.3yr newerKnowledge Cutoff
When training data ends
Gemini 2.5 Pro Preview 06-05 has a documented knowledge cutoff of 2025-01-31, while Claude 3 Opus's cutoff date is not specified.
We can confirm Gemini 2.5 Pro Preview 06-05's training data extends to 2025-01-31, but cannot make a direct comparison without Claude 3 Opus's cutoff date.
—
Jan 2025
Provider Availability
Claude 3 Opus is available from Anthropic, Bedrock, Google. Gemini 2.5 Pro Preview 06-05 is available from Google.
Claude 3 Opus
Gemini 2.5 Pro Preview 06-05
Outputs Comparison
Key Takeaways
Claude 3 Opus
View detailsAnthropic
No standout differentiators in the data we have for this pair.
Detailed Comparison
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FAQ
Common questions about Claude 3 Opus vs Gemini 2.5 Pro Preview 06-05.