Claude 3.5 Sonnet vs GPT-4.1
Claude 3.5 Sonnet and GPT-4.1 are closely matched at 19.4 and 18.4 on the LLM Stats Score. GPT-4.1 is 1.7x cheaper per token.
Anthropic · OpenAI · Updated for 2026
Which is better?
Claude 3.5 Sonnet and GPT-4.1 are closely matched on the overall LLM Stats Score at 19.4 and 18.4.
In the 7 individual benchmarks reported for both models, GPT-4.1 wins 4; this is a narrower head-to-head signal than the composite indexes.
On price, GPT-4.1 is roughly 1.7x cheaper per token on a blended 3:1 input/output basis, which adds up quickly at production volume.
GPT-4.1 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 LLM Stats indexes, shared benchmarks, pricing, and model metadata for 2026.
Choose Claude 3.5 Sonnet
- you want predictable pricing at $3.00/M input and $15.00/M output
Choose GPT-4.1
- you value its reported benchmark strengths — it wins 4 of 7 exact shared results
- cost matters — it's about 1.7x 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.
Capability indexes
Additional strengths measured across groups of related public benchmarks
Individual benchmarks
19 reported for Claude 3.5 Sonnet · 29 for GPT-4.1
Claude 3.5 Sonnet outperforms in 3 benchmarks (GPQA, MMLU, TAU-bench Retail), while GPT-4.1 is better at 4 benchmarks (MathVista, MMMU, SWE-Bench Verified, TAU-bench Airline).
GPT-4.1 has a slight edge in benchmark performance.
Human preference
Blind head-to-head votes and playground preference scores
Pricing Analysis
Price comparison per million tokens
For input processing, Claude 3.5 Sonnet ($3.00/1M tokens) is 1.5x more expensive than GPT-4.1 ($2.00/1M tokens).
For output processing, Claude 3.5 Sonnet ($15.00/1M tokens) is 1.9x more expensive than GPT-4.1 ($8.00/1M tokens).
In conclusion, Claude 3.5 Sonnet is more expensive than GPT-4.1.*
* Using a 3:1 ratio of input to output tokens
Context Window
Maximum input and output token capacity
GPT-4.1 accepts 1,047,576 input tokens compared to Claude 3.5 Sonnet's 200,000 tokens. Claude 3.5 Sonnet can generate longer responses up to 200,000 tokens, while GPT-4.1 is limited to 32,768 tokens.
Input capabilities
Documented input modalities across available providers
Both Claude 3.5 Sonnet and GPT-4.1 support multimodal inputs.
They are both capable of processing various types of data, offering versatility in application.
Claude 3.5 Sonnet
GPT-4.1
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 3.5 Sonnet was released on 2024-10-22, while GPT-4.1 was released on 2025-04-14.
GPT-4.1 is 6 months newer than Claude 3.5 Sonnet.
Oct 22, 2024
1.8 years ago
Apr 14, 2025
1.4 years ago
5mo newerKnowledge Cutoff
When training data ends
GPT-4.1 has a documented knowledge cutoff of 2024-06-01, while Claude 3.5 Sonnet's cutoff date is not specified.
We can confirm GPT-4.1's training data extends to 2024-06-01, but cannot make a direct comparison without Claude 3.5 Sonnet's cutoff date.
—
Jun 2024
Provider Availability
Claude 3.5 Sonnet is available from Anthropic, Bedrock, Google. GPT-4.1 is available from OpenAI.
Claude 3.5 Sonnet
GPT-4.1
Outputs Comparison
Judge for yourself.
Run your own prompts against Claude 3.5 Sonnet and GPT-4.1 side-by-side, then vote on the output you prefer.
FAQ
Common questions about Claude 3.5 Sonnet vs GPT-4.1.