Claude 3 Opus vs GPT-4o mini
Claude 3 Opus shows notably better performance in the majority of benchmarks. GPT-4o mini is 114.3x cheaper per token.
Anthropic · OpenAI · Updated for 2026
Which is better?
Claude 3 Opus outperforms in 4 benchmarks (DROP, GPQA, MGSM, MMLU), while GPT-4o mini is better at 2 benchmarks (HumanEval, MATH). Claude 3 Opus shows notably better performance in the majority of benchmarks.
On price, GPT-4o mini is roughly 114.3x cheaper per token on a blended 3:1 input/output basis, which adds up quickly at production volume.
Claude 3 Opus also accepts a larger context window (200,000 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 4 of 6 shared benchmarks
- you process long inputs — it offers a 200,000 token context window
Choose GPT-4o mini
- cost matters — it's about 114.3x cheaper per token
- you want the most recent training data — it shipped Jul 2024
At a glance
The differences that matter most.
Performance Benchmarks
Comparative analysis across standard metrics
Claude 3 Opus outperforms in 4 benchmarks (DROP, GPQA, MGSM, MMLU), while GPT-4o mini is better at 2 benchmarks (HumanEval, MATH).
Claude 3 Opus shows notably better performance in the majority of 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 100.0x more expensive than GPT-4o mini ($0.15/1M tokens).
For output processing, Claude 3 Opus ($75.00/1M tokens) is 125.0x more expensive than GPT-4o mini ($0.60/1M tokens).
In conclusion, Claude 3 Opus is more expensive than GPT-4o mini.*
* Using a 3:1 ratio of input to output tokens
Context Window
Maximum input and output token capacity
Claude 3 Opus accepts 200,000 input tokens compared to GPT-4o mini's 128,000 tokens. Claude 3 Opus can generate longer responses up to 200,000 tokens, while GPT-4o mini is limited to 16,384 tokens.
Input Capabilities
Supported data types and modalities
Both Claude 3 Opus and GPT-4o mini support multimodal inputs.
They are both capable of processing various types of data, offering versatility in application.
Claude 3 Opus
GPT-4o mini
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 GPT-4o mini was released on 2024-07-18.
GPT-4o mini is 5 months newer than Claude 3 Opus.
Feb 29, 2024
2.5 years ago
Jul 18, 2024
2.1 years ago
4mo newerKnowledge Cutoff
When training data ends
GPT-4o mini has a documented knowledge cutoff of 2023-10-01, while Claude 3 Opus's cutoff date is not specified.
We can confirm GPT-4o mini's training data extends to 2023-10-01, but cannot make a direct comparison without Claude 3 Opus's cutoff date.
—
Oct 2023
Provider Availability
Claude 3 Opus is available from Anthropic, Bedrock, Google. GPT-4o mini is available from Azure.
Claude 3 Opus
GPT-4o mini
Outputs Comparison
Judge for yourself.
Run your own prompts against Claude 3 Opus and GPT-4o mini side-by-side, then vote on the output you prefer.
FAQ
Common questions about Claude 3 Opus vs GPT-4o mini.