GPT-6 Sol vs o4-mini
GPT-6 Sol leads the LLM Stats Score 49.4 to 27.5. o4-mini is 2.1x cheaper per token.
OpenAI · OpenAI · Updated for 2026
Which is better?
GPT-6 Sol leads the overall LLM Stats Score 49.4 to 27.5, ranking #21 overall.
On price, o4-mini is roughly 2.1x 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 49.4 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
Choose o4-mini
- cost matters — it's about 2.1x cheaper per token
At a glance
The differences that matter most.
Capability indexes
Additional strengths measured across groups of related public benchmarks
Individual benchmarks
5 reported for GPT-6 Sol · 14 for o4-mini
GPT-6 Sol and o4-minidon'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 1.8x more expensive than o4-mini ($1.10/1M tokens).
For output processing, GPT-6 Sol ($10.00/1M tokens) is 2.3x more expensive than o4-mini ($4.40/1M tokens).
In conclusion, GPT-6 Sol is more expensive than o4-mini.*
* 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 o4-mini's 200,000 tokens. GPT-6 Sol can generate longer responses up to 128,000 tokens, while o4-mini is limited to 100,000 tokens.
Input capabilities
Documented input modalities across available providers
Both GPT-6 Sol and o4-mini support multimodal inputs.
They are both capable of processing various types of data, offering versatility in application.
GPT-6 Sol
o4-mini
License
Usage and distribution terms
Both models are licensed under proprietary licenses.
Both models have usage restrictions defined by their respective organizations.
Proprietary
Closed source
Proprietary
Closed source
Release Timeline
When each model was launched
GPT-6 Sol was released on 2026-09-22, while o4-mini was released on 2025-04-16.
GPT-6 Sol is 17 months newer than o4-mini.
Sep 22, 2026
0 days ago
1.4yr newerApr 16, 2025
1.4 years ago
Knowledge Cutoff
When training data ends
GPT-6 Sol has a knowledge cutoff of 2026-04-20, while o4-mini has a cutoff of 2024-05-31.
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 o4-mini (2024-05-31).
Apr 2026
1.9 yr newerMay 2024
Provider Availability
GPT-6 Sol is available from OpenAI. o4-mini is available from OpenAI.
GPT-6 Sol
o4-mini
Outputs Comparison
Judge for yourself.
Run your own prompts against GPT-6 Sol and o4-mini side-by-side, then vote on the output you prefer.
FAQ
Common questions about GPT-6 Sol vs o4-mini.