GPT-6 Sol vs GPT-6.1 Sol
GPT-6 Sol and GPT-6.1 Sol are closely matched at 49.0 and 52.0 on the LLM Stats Score. GPT-6 Sol and GPT-6.1 Sol cost the same.
OpenAI · OpenAI · Updated for 2026
Which is better?
GPT-6 Sol and GPT-6.1 Sol are closely matched on the overall LLM Stats Score at 49.0 and 52.0.
In the 3 individual benchmarks reported for both models, GPT-6.1 Sol wins 3; this is a narrower head-to-head signal than the composite indexes.
Based on current LLM Stats indexes, shared benchmarks, pricing, and model metadata for 2026.
Choose GPT-6 Sol
- you want predictable pricing at $2.00/M input and $10.00/M output
Choose GPT-6.1 Sol
- you value its reported benchmark strengths — it wins 3 of 3 exact shared results
- you want the most recent training data — it shipped Sep 2026
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 · 10 for GPT-6.1 Sol
GPT-6 Sol outperforms in 0 benchmarks, while GPT-6.1 Sol is better at 3 benchmarks (AutomationBench v1.0.6, DeepSWE 1.1, OSWorld 2.0).
GPT-6.1 Sol significantly outperforms across most benchmarks.
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) costs the same as GPT-6.1 Sol ($2.00/1M tokens).
For output processing, GPT-6 Sol ($10.00/1M tokens) costs the same as GPT-6.1 Sol ($10.00/1M tokens).
In conclusion, GPT-6 Sol and GPT-6.1 Sol cost the same.*
* Using a 3:1 ratio of input to output tokens
Context Window
Maximum input and output token capacity
Both models have the same input context window of 1,050,000 tokens. Both models can generate responses up to 128,000 tokens.
Input capabilities
Documented input modalities across available providers
Both GPT-6 Sol and GPT-6.1 Sol support multimodal inputs.
They are both capable of processing various types of data, offering versatility in application.
GPT-6 Sol
GPT-6.1 Sol
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 GPT-6.1 Sol was released on 2026-09-29.
GPT-6.1 Sol is 0 month newer than GPT-6 Sol.
Sep 22, 2026
1 weeks ago
Sep 29, 2026
0 days ago
1w newerKnowledge Cutoff
When training data ends
GPT-6 Sol has a knowledge cutoff of 2026-04-20, while GPT-6.1 Sol has a cutoff of 2026-04-30.
GPT-6.1 Sol has more recent training data (up to 2026-04-30), making it potentially better informed about events through that date compared to GPT-6 Sol (2026-04-20).
Apr 2026
Apr 2026
Provider Availability
GPT-6 Sol is available from OpenAI. GPT-6.1 Sol is available from OpenAI.
GPT-6 Sol
GPT-6.1 Sol
Outputs Comparison
Judge for yourself.
Run your own prompts against GPT-6 Sol and GPT-6.1 Sol side-by-side, then vote on the output you prefer.
FAQ
Common questions about GPT-6 Sol vs GPT-6.1 Sol.