Claude 3 Opus vs GPT-4.1 nano
Claude 3 Opus significantly outperforms across most benchmarks. GPT-4.1 nano is 171.4x cheaper per token.
Anthropic · OpenAI · Updated for 2026
Which is better?
Claude 3 Opus outperforms in 2 benchmarks (GPQA, MMLU), while GPT-4.1 nano is better at 0 benchmarks. Claude 3 Opus significantly outperforms across most benchmarks.
On price, GPT-4.1 nano is roughly 171.4x cheaper per token on a blended 3:1 input/output basis, which adds up quickly at production volume.
GPT-4.1 nano also accepts a larger context window (1,047,576 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 2 of 2 shared benchmarks
Choose GPT-4.1 nano
- cost matters — it's about 171.4x cheaper per token
- you process long inputs — it offers a 1,047,576 token context window
- you want the most recent training data — it shipped Apr 2025
At a glance
The differences that matter most.
Performance Benchmarks
Comparative analysis across standard metrics
Claude 3 Opus outperforms in 2 benchmarks (GPQA, MMLU), while GPT-4.1 nano 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 150.0x more expensive than GPT-4.1 nano ($0.10/1M tokens).
For output processing, Claude 3 Opus ($75.00/1M tokens) is 187.5x more expensive than GPT-4.1 nano ($0.40/1M tokens).
In conclusion, Claude 3 Opus is more expensive than GPT-4.1 nano.*
* Using a 3:1 ratio of input to output tokens
Context Window
Maximum input and output token capacity
GPT-4.1 nano accepts 1,047,576 input tokens compared to Claude 3 Opus's 200,000 tokens. Claude 3 Opus can generate longer responses up to 200,000 tokens, while GPT-4.1 nano is limited to 32,768 tokens.
Input Capabilities
Supported data types and modalities
Both Claude 3 Opus and GPT-4.1 nano support multimodal inputs.
They are both capable of processing various types of data, offering versatility in application.
Claude 3 Opus
GPT-4.1 nano
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-4.1 nano was released on 2025-04-14.
GPT-4.1 nano is 14 months newer than Claude 3 Opus.
Feb 29, 2024
2.5 years ago
Apr 14, 2025
1.4 years ago
1.1yr newerKnowledge Cutoff
When training data ends
GPT-4.1 nano has a documented knowledge cutoff of 2024-05-31, while Claude 3 Opus's cutoff date is not specified.
We can confirm GPT-4.1 nano's training data extends to 2024-05-31, but cannot make a direct comparison without Claude 3 Opus's cutoff date.
—
May 2024
Provider Availability
Claude 3 Opus is available from Anthropic, Bedrock, Google. GPT-4.1 nano is available from OpenAI.
Claude 3 Opus
GPT-4.1 nano
Outputs Comparison
Judge for yourself.
Run your own prompts against Claude 3 Opus and GPT-4.1 nano side-by-side, then vote on the output you prefer.
FAQ
Common questions about Claude 3 Opus vs GPT-4.1 nano.