Claude 3 Opus vs Phi 4
Claude 3 Opus and Phi 4 are closely matched at 10.4 and 6.0 on the LLM Stats Score. Phi 4 is 342.9x cheaper per token.
Anthropic · Microsoft · Updated for 2026
Which is better?
Claude 3 Opus and Phi 4 are closely matched on the overall LLM Stats Score at 10.4 and 6.0.
In the 7 individual benchmarks reported for both models, Claude 3 Opus wins 4; this is a narrower head-to-head signal than the composite indexes.
On price, Phi 4 is roughly 342.9x 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 LLM Stats indexes, shared benchmarks, pricing, and model metadata for 2026.
Choose Claude 3 Opus
- you value its reported benchmark strengths — it wins 4 of 7 exact shared results
- you process long inputs — it offers a 200,000 token context window
Choose Phi 4
- cost matters — it's about 342.9x cheaper per token
- you want the most recent training data — it shipped Dec 2024
- you need open weights you can self-host or fine-tune
At a glance
The differences that matter most.
Capability indexes
Additional strengths measured across groups of related public benchmarks
Individual benchmarks
11 reported for Claude 3 Opus · 13 for Phi 4
Claude 3 Opus outperforms in 4 benchmarks (DROP, HumanEval, MGSM, MMLU), while Phi 4 is better at 3 benchmarks (GPQA, MATH, MMLU-Pro).
Claude 3 Opus 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 Opus ($15.00/1M tokens) is 214.3x more expensive than Phi 4 ($0.07/1M tokens).
For output processing, Claude 3 Opus ($75.00/1M tokens) is 535.7x more expensive than Phi 4 ($0.14/1M tokens).
In conclusion, Claude 3 Opus is more expensive than Phi 4.*
* 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 Phi 4's 16,000 tokens. Claude 3 Opus can generate longer responses up to 200,000 tokens, while Phi 4 is limited to 16,000 tokens.
Input capabilities
Documented input modalities across available providers
Claude 3 Opus supports multimodal inputs, whereas Phi 4 does not.
Claude 3 Opus can handle both text and other forms of data like images, making it suitable for multimodal applications.
Claude 3 Opus
Phi 4
License
Usage and distribution terms
Claude 3 Opus is licensed under a proprietary license, while Phi 4 uses MIT.
License differences may affect how you can use these models in commercial or open-source projects.
Proprietary
Closed source
MIT
Open weights
Release Timeline
When each model was launched
Claude 3 Opus was released on 2024-02-29, while Phi 4 was released on 2024-12-12.
Phi 4 is 10 months newer than Claude 3 Opus.
Feb 29, 2024
2.5 years ago
Dec 12, 2024
1.7 years ago
9mo newerKnowledge Cutoff
When training data ends
Phi 4 has a documented knowledge cutoff of 2024-06-01, while Claude 3 Opus's cutoff date is not specified.
We can confirm Phi 4's training data extends to 2024-06-01, but cannot make a direct comparison without Claude 3 Opus's cutoff date.
—
Jun 2024
Provider Availability
Claude 3 Opus is available from Anthropic, Bedrock, Google. Phi 4 is available from DeepInfra.
Claude 3 Opus
Phi 4
Outputs Comparison
Judge for yourself.
Run your own prompts against Claude 3 Opus and Phi 4 side-by-side, then vote on the output you prefer.
FAQ
Common questions about Claude 3 Opus vs Phi 4.