GPT-6 Sol vs Mistral Medium 3.5
GPT-6 Sol leads the LLM Stats Score 49.0 to 26.9. Mistral Medium 3.5 is 1.3x cheaper per token.
OpenAI · Mistral AI · Updated for 2026
Which is better?
GPT-6 Sol leads the overall LLM Stats Score 49.0 to 26.9, ranking #24 overall.
On price, Mistral Medium 3.5 is roughly 1.3x 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-6 Sol
- overall performance matters — it scores 49.0 and ranks #24 on LLM Stats
- your work emphasizes reasoning and agents — 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
Choose Mistral Medium 3.5
- cost matters — it's about 1.3x cheaper per token
- you need open weights you can self-host or fine-tune
At a glance
The differences that matter most.
Individual benchmarks
5 reported for GPT-6 Sol · 11 for Mistral Medium 3.5
GPT-6 Sol and Mistral Medium 3.5don'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
For input processing, GPT-6 Sol ($2.00/1M tokens) is 1.3x more expensive than Mistral Medium 3.5 ($1.50/1M tokens).
For output processing, GPT-6 Sol ($10.00/1M tokens) is 1.3x more expensive than Mistral Medium 3.5 ($7.50/1M tokens).
In conclusion, GPT-6 Sol is more expensive than Mistral Medium 3.5.*
* Using a 3:1 ratio of input to output tokens
Context Window
Maximum input and output token capacity
GPT-6 Sol accepts 1,050,000 input tokens compared to Mistral Medium 3.5's 256,000 tokens. Mistral Medium 3.5 can generate longer responses up to 256,000 tokens, while GPT-6 Sol is limited to 128,000 tokens.
Input capabilities
Documented input modalities across available providers
Both GPT-6 Sol and Mistral Medium 3.5 support multimodal inputs.
They are both capable of processing various types of data, offering versatility in application.
GPT-6 Sol
Mistral Medium 3.5
License
Usage and distribution terms
GPT-6 Sol is licensed under a proprietary license, while Mistral Medium 3.5 uses Modified MIT License.
License differences may affect how you can use these models in commercial or open-source projects.
Proprietary
Closed source
Modified MIT License
Open weights
Release Timeline
When each model was launched
GPT-6 Sol was released on 2026-09-22, while Mistral Medium 3.5 was released on 2026-04-29.
GPT-6 Sol is 5 months newer than Mistral Medium 3.5.
Sep 22, 2026
1 weeks ago
4mo newerApr 29, 2026
5 months ago
Knowledge Cutoff
When training data ends
GPT-6 Sol has a documented knowledge cutoff of 2026-04-20, while Mistral Medium 3.5's cutoff date is not specified.
We can confirm GPT-6 Sol's training data extends to 2026-04-20, but cannot make a direct comparison without Mistral Medium 3.5's cutoff date.
Apr 2026
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Provider Availability
GPT-6 Sol is available from OpenAI. Mistral Medium 3.5 is available from Mistral AI.
GPT-6 Sol
Mistral Medium 3.5
Outputs Comparison
Judge for yourself.
Run your own prompts against GPT-6 Sol and Mistral Medium 3.5 side-by-side, then vote on the output you prefer.
FAQ
Common questions about GPT-6 Sol vs Mistral Medium 3.5.