Model Comparison

o1 vs GPT-4 TurboWhich is better in 2026?

o1 significantly outperforms across most benchmarks. GPT-4 Turbo is 1.8x cheaper per token.

Verdict: o1 vs GPT-4 Turbo — which is better?

o1 (by OpenAI) and GPT-4 Turbo (by OpenAI) are two of the AI models people compare most. Here is how they stack up on benchmarks, price and capabilities, and which one to pick in 2026.

o1 outperforms in 5 benchmarks (GPQA, HumanEval, MATH, MGSM, MMLU), while GPT-4 Turbo is better at 0 benchmarks. o1 significantly outperforms across most benchmarks.

On price, GPT-4 Turbo is roughly 1.8x cheaper per token on a blended 3:1 input/output basis, which adds up quickly at production volume.

o1 also accepts a larger context window (200,000 input tokens), making it the stronger choice for long documents and large codebases.

Choose o1 if…

  • you want the strongest raw capability — it leads on 5 of 5 shared benchmarks
  • you process long inputs — it offers a 200,000 token context window
  • you want the most recent training data — it shipped Dec 2024

Choose GPT-4 Turbo if…

  • cost matters — it's about 1.8x cheaper per token
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Performance Benchmarks

Comparative analysis across standard metrics

5 benchmarks

o1 outperforms in 5 benchmarks (GPQA, HumanEval, MATH, MGSM, MMLU), while GPT-4 Turbo is better at 0 benchmarks.

o1 significantly outperforms across most benchmarks.

Sat Jun 06 2026 • llm-stats.com

Arena Performance

Human preference votes

Pricing Analysis

Price comparison per million tokens

GPT-4 Turbo costs less

For input processing, o1 ($15.00/1M tokens) is 1.5x more expensive than GPT-4 Turbo ($10.00/1M tokens).

For output processing, o1 ($60.00/1M tokens) is 2.0x more expensive than GPT-4 Turbo ($30.00/1M tokens).

In conclusion, o1 is more expensive than GPT-4 Turbo.*

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

Lowest available price from all providers
Sat Jun 06 2026 • llm-stats.com
OpenAI
o1
Input tokens$15.00
Output tokens$60.00
Best providerAzure
OpenAI
GPT-4 Turbo
Input tokens$10.00
Output tokens$30.00
Best providerAzure
Notice missing or incorrect data?Start an Issue→

Context Window

Maximum input and output token capacity

o1 accepts 200,000 input tokens compared to GPT-4 Turbo's 128,000 tokens. o1 can generate longer responses up to 100,000 tokens, while GPT-4 Turbo is limited to 4,096 tokens.

OpenAI
o1
Input200,000 tokens
Output100,000 tokens
OpenAI
GPT-4 Turbo
Input128,000 tokens
Output4,096 tokens
Sat Jun 06 2026 • llm-stats.com

License

Usage and distribution terms

Both models are licensed under proprietary licenses.

Both models have usage restrictions defined by their respective organizations.

o1

Proprietary

Closed source

GPT-4 Turbo

Proprietary

Closed source

Release Timeline

When each model was launched

o1 was released on 2024-12-17, while GPT-4 Turbo was released on 2024-04-09.

o1 is 8 months newer than GPT-4 Turbo.

o1

Dec 17, 2024

1.5 years ago

8mo newer
GPT-4 Turbo

Apr 9, 2024

2.2 years ago

Knowledge Cutoff

When training data ends

GPT-4 Turbo has a documented knowledge cutoff of 2023-12-31, while o1's cutoff date is not specified.

We can confirm GPT-4 Turbo's training data extends to 2023-12-31, but cannot make a direct comparison without o1's cutoff date.

o1

—

GPT-4 Turbo

Dec 2023

Provider Availability

o1 is available from Azure, OpenAI. GPT-4 Turbo is available from Azure, OpenAI.

o1

azure logo
Azure
Input Price:Input: $15.00/1MOutput Price:Output: $60.00/1M
openai logo
OpenAI
Input Price:Input: $15.00/1MOutput Price:Output: $60.00/1M

GPT-4 Turbo

azure logo
Azure
Input Price:Input: $10.00/1MOutput Price:Output: $30.00/1M
openai logo
OpenAI
Input Price:Input: $10.00/1MOutput Price:Output: $30.00/1M
* Prices shown are per million tokens

Outputs Comparison

Notice missing or incorrect data?Start an Issue discussion→

Key Takeaways

OpenAI
Larger context window (200,000 tokens)
Higher GPQA score (78.0% vs 48.0%)
Higher HumanEval score (88.1% vs 87.1%)
Higher MATH score (96.4% vs 72.6%)
Higher MGSM score (89.3% vs 88.5%)
Higher MMLU score (91.8% vs 86.5%)
OpenAI
Less expensive input tokens
Less expensive output tokens

Detailed Comparison

AI Model Comparison Table
Feature
OpenAI
o1
OpenAI
GPT-4 Turbo

FAQ

Common questions about o1 vs GPT-4 Turbo.

Which is better, o1 or GPT-4 Turbo?

o1 significantly outperforms across most benchmarks. o1 is made by OpenAI and GPT-4 Turbo is made by OpenAI. The best choice depends on your use case — compare their benchmark scores, pricing, and capabilities above.

How does o1 compare to GPT-4 Turbo in benchmarks?

o1 scores GSM8k: 97.1%, MATH: 96.4%, GPQA Physics: 92.8%, MMLU: 91.8%, MGSM: 89.3%. GPT-4 Turbo scores MGSM: 88.5%, HumanEval: 87.1%, MMLU: 86.5%, DROP: 86.0%, MATH: 72.6%.

Is o1 cheaper than GPT-4 Turbo?

GPT-4 Turbo is 1.5x cheaper for input tokens. o1 costs $15.00/M input and $60.00/M output via azure. GPT-4 Turbo costs $10.00/M input and $30.00/M output via azure.

What are the context window sizes for o1 and GPT-4 Turbo?

o1 supports 200K tokens and GPT-4 Turbo supports 128K tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.

What are the main differences between o1 and GPT-4 Turbo?

Key differences include context window (200K vs 128K), input pricing ($15.00 vs $10.00/M). See the full comparison above for benchmark-by-benchmark results.

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