GPT-4 Turbo vs Phi 4

GPT-4 Turbo and Phi 4 are closely matched at 9.6 and 6.0 on the LLM Stats Score. Phi 4 is 171.4x cheaper per token.

OpenAI · Microsoft · Updated for 2026

Which is better?

GPT-4 Turbo and Phi 4 are closely matched on the overall LLM Stats Score at 9.6 and 6.0.

In the 6 individual benchmarks reported for both models, GPT-4 Turbo wins 4; this is a narrower head-to-head signal than the composite indexes.

On price, Phi 4 is roughly 171.4x cheaper per token on a blended 3:1 input/output basis, which adds up quickly at production volume.

GPT-4 Turbo also accepts a larger context window (128,000 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 GPT-4 Turbo

you value its reported benchmark strengths — it wins 4 of 6 exact shared results
you process long inputs — it offers a 128,000 token context window

Choose Phi 4

cost matters — it's about 171.4x 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.

Better token value: Phi 4

Core performance indexes

LLM Stats Score

9.6

#250 · 6 evals

Best

6.0

#274 · 13 evals

Reasoning

9.7

#242 · 6 evals

Best

7.1

#265 · 12 evals

Coding

7.3

#171 · 1 evals

Best

3.5

#201 · 1 evals

Cost, coverage & limits

Benchmark wins

4 of 6

Best

2 of 6

Input price

$10.00 / M

$0.07 / M

Best

Output price

$30.00 / M

$0.14 / M

Best

Context window

128,000

Best

16,000

Capability indexes

Additional strengths measured across groups of related public benchmarks

1 shared

Index

GPT-4 Turbo

Phi 4

Math

17.4#183 · 4 evals

13.2#216 · 7 evals

Conservative TrueSkill rating · higher is betterHow scores work

Individual benchmarks

6 reported for GPT-4 Turbo · 13 for Phi 4

6 shared

GPT-4 Turbo outperforms in 4 benchmarks (DROP, HumanEval, MGSM, MMLU), while Phi 4 is better at 2 benchmarks (GPQA, MATH).

GPT-4 Turbo shows notably better performance in the majority of benchmarks.

Fri Aug 28 2026 • llm-stats.com

Human preference

Blind head-to-head votes and playground preference scores

Pricing Analysis

Price comparison per million tokens

Phi 4 costs less

For input processing, GPT-4 Turbo ($10.00/1M tokens) is 142.9x more expensive than Phi 4 ($0.07/1M tokens).

For output processing, GPT-4 Turbo ($30.00/1M tokens) is 214.3x more expensive than Phi 4 ($0.14/1M tokens).

In conclusion, GPT-4 Turbo is more expensive than Phi 4.*

* Using a 3:1 ratio of input to output tokens

Lowest available price from all providers

Fri Aug 28 2026 • llm-stats.com

GPT-4 Turbo

Input tokens$10.00

Output tokens$30.00

Best providerAzure

Phi 4

Input tokens$0.07

Output tokens$0.14

Best providerDeepinfra

Notice missing or incorrect data?Start an Issue→

Context Window

Maximum input and output token capacity

GPT-4 Turbo accepts 128,000 input tokens compared to Phi 4's 16,000 tokens. Phi 4 can generate longer responses up to 16,000 tokens, while GPT-4 Turbo is limited to 4,096 tokens.

GPT-4 Turbo

Input128,000 tokens

Output4,096 tokens

Phi 4

Input16,000 tokens

Output16,000 tokens

Fri Aug 28 2026 • llm-stats.com

License

Usage and distribution terms

GPT-4 Turbo 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.

GPT-4 Turbo

Proprietary

Closed source

Phi 4

MIT

Open weights

Release Timeline

When each model was launched

GPT-4 Turbo was released on 2024-04-09, while Phi 4 was released on 2024-12-12.

Phi 4 is 8 months newer than GPT-4 Turbo.

GPT-4 Turbo

Apr 9, 2024

2.4 years ago

Phi 4

Dec 12, 2024

1.7 years ago

8mo newer

Knowledge Cutoff

When training data ends

GPT-4 Turbo has a knowledge cutoff of 2023-12-31, while Phi 4 has a cutoff of 2024-06-01.

Phi 4 has more recent training data (up to 2024-06-01), making it potentially better informed about events through that date compared to GPT-4 Turbo (2023-12-31).

GPT-4 Turbo

Dec 2023

Phi 4

Jun 2024

6 mo newer

Provider Availability

GPT-4 Turbo is available from Azure, OpenAI. Phi 4 is available from DeepInfra.

GPT-4 Turbo

Azure

Input Price:Input: $10.00/1MOutput Price:Output: $30.00/1M

OpenAI

Input Price:Input: $10.00/1MOutput Price:Output: $30.00/1M

Phi 4

Deepinfra

Input Price:Input: $0.07/1MOutput Price:Output: $0.14/1M

* Prices shown are per million tokens

Outputs Comparison

Notice missing or incorrect data?Start an Issue discussion→

Judge for yourself.

Run your own prompts against GPT-4 Turbo and Phi 4 side-by-side, then vote on the output you prefer.

GPT-4 Turbo

✓ Preferred

Phi 4

Open in Playground

FAQ

Common questions about GPT-4 Turbo vs Phi 4.

Which is better, GPT-4 Turbo or Phi 4?

GPT-4 Turbo and Phi 4 are closely matched on the LLM Stats Score at 9.6 and 6.0. GPT-4 Turbo is made by OpenAI and Phi 4 is made by Microsoft. The best choice depends on your use case — compare their capability indexes, individual benchmarks, pricing, and limits above.

How does GPT-4 Turbo compare to Phi 4 in benchmarks?

GPT-4 Turbo scores MGSM: 88.5%, HumanEval: 87.1%, MMLU: 86.5%, DROP: 86.0%, MATH: 72.6%. Phi 4 scores MMLU: 84.8%, HumanEval+: 82.8%, HumanEval: 82.6%, MGSM: 80.6%, MATH: 80.4%.

Is GPT-4 Turbo cheaper than Phi 4?

Phi 4 is 142.9x cheaper for input tokens. GPT-4 Turbo costs $10.00/M input and $30.00/M output via azure. Phi 4 costs $0.07/M input and $0.14/M output via deepinfra.

What are the context window sizes for GPT-4 Turbo and Phi 4?

GPT-4 Turbo supports 128K tokens and Phi 4 supports 16K tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.

What are the main differences between GPT-4 Turbo and Phi 4?

Key differences include LLM Stats Score (9.6 vs 6.0), context window (128K vs 16K), input pricing ($10.00 vs $0.07/M), licensing (Proprietary vs MIT). See the full comparison above for benchmark-by-benchmark results.

Who makes GPT-4 Turbo and Phi 4?

GPT-4 Turbo is developed by OpenAI and Phi 4 is developed by Microsoft.

GPT-4 Turbo vs Phi 4