Model Comparison

Grok-3 vs GPT-3.5 Turbo

Grok-3 significantly outperforms across most benchmarks. GPT-3.5 Turbo is 8.0x cheaper per token.

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Performance Benchmarks

Comparative analysis across standard metrics

2 benchmarks

Grok-3 outperforms in 2 benchmarks (GPQA, MMMU), while GPT-3.5 Turbo is better at 0 benchmarks.

Grok-3 significantly outperforms across most benchmarks.

Thu Apr 02 2026 • llm-stats.com

Arena Performance

Human preference votes

Pricing Analysis

Price comparison per million tokens

GPT-3.5 Turbo costs less

For input processing, Grok-3 ($3.00/1M tokens) is 6.0x more expensive than GPT-3.5 Turbo ($0.50/1M tokens).

For output processing, Grok-3 ($15.00/1M tokens) is 10.0x more expensive than GPT-3.5 Turbo ($1.50/1M tokens).

In conclusion, Grok-3 is more expensive than GPT-3.5 Turbo.*

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

Lowest available price from all providers
Thu Apr 02 2026 • llm-stats.com
xAI
Grok-3
Input tokens$3.00
Output tokens$15.00
Best providerxAI
OpenAI
GPT-3.5 Turbo
Input tokens$0.50
Output tokens$1.50
Best providerAzure
Notice missing or incorrect data?Start an Issue→

Context Window

Maximum input and output token capacity

Grok-3 accepts 128,000 input tokens compared to GPT-3.5 Turbo's 16,385 tokens. Grok-3 can generate longer responses up to 8,000 tokens, while GPT-3.5 Turbo is limited to 4,096 tokens.

xAI
Grok-3
Input128,000 tokens
Output8,000 tokens
OpenAI
GPT-3.5 Turbo
Input16,385 tokens
Output4,096 tokens
Thu Apr 02 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

Grok-3 supports multimodal inputs, whereas GPT-3.5 Turbo does not.

Grok-3 can handle both text and other forms of data like images, making it suitable for multimodal applications.

Grok-3

Text
Images
Audio
Video

GPT-3.5 Turbo

Text
Images
Audio
Video

License

Usage and distribution terms

Both models are licensed under proprietary licenses.

Both models have usage restrictions defined by their respective organizations.

Grok-3

Proprietary

Closed source

GPT-3.5 Turbo

Proprietary

Closed source

Release Timeline

When each model was launched

Grok-3 was released on 2025-02-17, while GPT-3.5 Turbo was released on 2023-03-21.

Grok-3 is 23 months newer than GPT-3.5 Turbo.

Grok-3

Feb 17, 2025

1.1 years ago

1.9yr newer
GPT-3.5 Turbo

Mar 21, 2023

3.0 years ago

Knowledge Cutoff

When training data ends

Grok-3 has a knowledge cutoff of 2024-11-17, while GPT-3.5 Turbo has a cutoff of 2021-09-30.

Grok-3 has more recent training data (up to 2024-11-17), making it potentially better informed about events through that date compared to GPT-3.5 Turbo (2021-09-30).

Grok-3

Nov 2024

3.2 yr newer
GPT-3.5 Turbo

Sep 2021

Provider Availability

Grok-3 is available from xAI. GPT-3.5 Turbo is available from Azure, OpenAI.

Grok-3

xai logo
xAI
Input Price:Input: $3.00/1MOutput Price:Output: $15.00/1M

GPT-3.5 Turbo

azure logo
Azure
Input Price:Input: $0.50/1MOutput Price:Output: $1.50/1M
openai logo
OpenAI
Input Price:Input: $0.50/1MOutput Price:Output: $1.50/1M
* Prices shown are per million tokens

Outputs Comparison

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Key Takeaways

xAI
Larger context window (128,000 tokens)
Supports multimodal inputs
Higher GPQA score (84.6% vs 30.8%)
Higher MMMU score (78.0% vs 0.0%)
OpenAI
Less expensive input tokens
Less expensive output tokens
xAIGrok-3
OpenAIGPT-3.5 Turbo
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Detailed Comparison

AI Model Comparison Table
Feature
xAI
Grok-3
OpenAI
GPT-3.5 Turbo

FAQ

Common questions about Grok-3 vs GPT-3.5 Turbo

Grok-3 significantly outperforms across most benchmarks. Grok-3 is made by xAI and GPT-3.5 Turbo is made by OpenAI. The best choice depends on your use case — compare their benchmark scores, pricing, and capabilities above.
Grok-3 scores AIME 2024: 93.3%, AIME 2025: 93.3%, GPQA: 84.6%, LiveCodeBench: 79.4%, MMMU: 78.0%. GPT-3.5 Turbo scores DROP: 70.2%, MMLU: 69.8%, HumanEval: 68.0%, MGSM: 56.3%, MATH: 43.1%.
GPT-3.5 Turbo is 6.0x cheaper for input tokens. Grok-3 costs $3.00/M input and $15.00/M output via xai. GPT-3.5 Turbo costs $0.50/M input and $1.50/M output via azure.
Grok-3 supports 128K tokens and GPT-3.5 Turbo supports 16K tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.
Key differences include context window (128K vs 16K), input pricing ($3.00 vs $0.50/M), multimodal support (yes vs no). See the full comparison above for benchmark-by-benchmark results.
Grok-3 is developed by xAI and GPT-3.5 Turbo is developed by OpenAI.