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GPT-3.5 Turbo vs GPT-6 Sol

GPT-6 Sol leads the LLM Stats Score 49.4 to -9.4. GPT-3.5 Turbo is 5.3x cheaper per token.

OpenAI · OpenAI · Updated for 2026

Which is better?

GPT-6 Sol leads the overall LLM Stats Score 49.4 to -9.4, ranking #21 overall.

On price, GPT-3.5 Turbo is roughly 5.3x cheaper per token on a blended 3:1 input/output basis, which adds up quickly at production volume.

GPT-6 Sol also accepts a larger context window (1,050,000 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-3.5 Turbo

  • cost matters — it's about 5.3x cheaper per token

Choose GPT-6 Sol

  • overall performance matters — it scores 49.4 and ranks #21 on LLM Stats
  • your work emphasizes reasoning and coding — it leads those capability indexes
  • you process long inputs — it offers a 1,050,000 token context window
  • you want the most recent training data — it shipped Sep 2026

At a glance

The differences that matter most.

GPT-3.5 Turbo
OpenAI
GPT-6 Sol
OpenAI
Core performance indexes
LLM Stats Score
-9.4
#370
49.4
#21
Reasoning
-8.7
#363
45.6
#29
Coding
-4.5
#264
35.8
#25
Cost, coverage & limits
Benchmark wins
—
—
Input price
$0.50 / M
$2.00 / M
Output price
$1.50 / M
$10.00 / M
Context window
16,385
1,050,000

Individual benchmarks

8 reported for GPT-3.5 Turbo · 5 for GPT-6 Sol

No common benchmarks found

GPT-3.5 Turbo and GPT-6 Soldon't have any common benchmark datasets to compare. They may have been evaluated on different testing suites.

Human preference

Blind head-to-head votes and playground preference scores

Pricing Analysis

Price comparison per million tokens

GPT-3.5 Turbo costs less

For input processing, GPT-3.5 Turbo ($0.50/1M tokens) is 4.0x cheaper than GPT-6 Sol ($2.00/1M tokens).

For output processing, GPT-3.5 Turbo ($1.50/1M tokens) is 6.7x cheaper than GPT-6 Sol ($10.00/1M tokens).

In conclusion, GPT-6 Sol is more expensive than GPT-3.5 Turbo.*

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

Lowest available price from all providers
Wed Sep 23 2026 • llm-stats.com
OpenAI
GPT-3.5 Turbo
Input tokens$0.50
Output tokens$1.50
Best providerAzure
OpenAI
GPT-6 Sol
Input tokens$2.00
Output tokens$10.00
Best providerOpenAI
Notice missing or incorrect data?Start an Issue→

Context Window

Maximum input and output token capacity

GPT-6 Sol accepts 1,050,000 input tokens compared to GPT-3.5 Turbo's 16,385 tokens. GPT-6 Sol can generate longer responses up to 128,000 tokens, while GPT-3.5 Turbo is limited to 4,096 tokens.

OpenAI
GPT-3.5 Turbo
Input16,385 tokens
Output4,096 tokens
OpenAI
GPT-6 Sol
Input1,050,000 tokens
Output128,000 tokens
Wed Sep 23 2026 • llm-stats.com

Input capabilities

Documented input modalities across available providers

GPT-6 Sol supports multimodal inputs, whereas GPT-3.5 Turbo does not.

GPT-6 Sol can handle both text and other forms of data like images, making it suitable for multimodal applications.

GPT-3.5 Turbo

Text
Images
Audio
Video

GPT-6 Sol

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.

GPT-3.5 Turbo

Proprietary

Closed source

GPT-6 Sol

Proprietary

Closed source

Release Timeline

When each model was launched

GPT-3.5 Turbo was released on 2023-03-21, while GPT-6 Sol was released on 2026-09-22.

GPT-6 Sol is 43 months newer than GPT-3.5 Turbo.

GPT-3.5 Turbo

Mar 21, 2023

3.5 years ago

GPT-6 Sol

Sep 22, 2026

0 days ago

3.5yr newer

Knowledge Cutoff

When training data ends

GPT-3.5 Turbo has a knowledge cutoff of 2021-09-30, while GPT-6 Sol has a cutoff of 2026-04-20.

GPT-6 Sol has more recent training data (up to 2026-04-20), making it potentially better informed about events through that date compared to GPT-3.5 Turbo (2021-09-30).

GPT-3.5 Turbo

Sep 2021

GPT-6 Sol

Apr 2026

4.6 yr newer

Provider Availability

GPT-3.5 Turbo is available from Azure, OpenAI. GPT-6 Sol is available from OpenAI.

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

GPT-6 Sol

openai logo
OpenAI
Input Price:Input: $2.00/1MOutput Price:Output: $10.00/1M
* 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-3.5 Turbo and GPT-6 Sol side-by-side, then vote on the output you prefer.

GPT-3.5 Turbo
✓ Preferred
GPT-6 Sol
Open in Playground

FAQ

Common questions about GPT-3.5 Turbo vs GPT-6 Sol.

Which is better, GPT-3.5 Turbo or GPT-6 Sol?

GPT-6 Sol leads the LLM Stats Score 49.4 to -9.4. GPT-3.5 Turbo is made by OpenAI and GPT-6 Sol is made by OpenAI. The best choice depends on your use case — compare their capability indexes, individual benchmarks, pricing, and limits above.

How does GPT-3.5 Turbo compare to GPT-6 Sol in benchmarks?

GPT-3.5 Turbo scores DROP: 70.2%, MMLU: 69.8%, HumanEval: 68.0%, MGSM: 56.3%, MATH: 43.1%. GPT-6 Sol scores DeepSWE 1.1: 68.8%, OSWorld 2.0: 64.4%, Agents' Last Exam: 56.4%, FrontierCode 1.1: 49.3%, AutomationBench v1.0.6: 33.2%.

Is GPT-3.5 Turbo cheaper than GPT-6 Sol?

GPT-3.5 Turbo is 4.0x cheaper for input tokens. GPT-3.5 Turbo costs $0.50/M input and $1.50/M output via azure. GPT-6 Sol costs $2.00/M input and $10.00/M output via openai.

What are the context window sizes for GPT-3.5 Turbo and GPT-6 Sol?

GPT-3.5 Turbo supports 16K tokens and GPT-6 Sol supports 1.1M tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.

What are the main differences between GPT-3.5 Turbo and GPT-6 Sol?

Key differences include LLM Stats Score (-9.4 vs 49.4), context window (16K vs 1.1M), input pricing ($0.50 vs $2.00/M), multimodal support (no vs yes). See the full comparison above for benchmark-by-benchmark results.

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