GPT-6 Sol vs Kimi K3
GPT-6 Sol and Kimi K3 are closely matched at 49.4 and 52.5 on the LLM Stats Score. GPT-6 Sol is 1.4x cheaper per token.
OpenAI · Moonshot AI · Updated for 2026
Which is better?
GPT-6 Sol and Kimi K3 are closely matched on the overall LLM Stats Score at 49.4 and 52.5.
In the 1 individual benchmarks reported for both models, Kimi K3 wins 1; this is a narrower head-to-head signal than the composite indexes.
On price, GPT-6 Sol is roughly 1.4x 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
- cost matters — it's about 1.4x cheaper per token
- 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 Kimi K3
- you value its reported benchmark strengths — it wins 1 of 1 exact shared results
- you need open weights you can self-host or fine-tune
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 · 31 for Kimi K3
GPT-6 Sol outperforms in 0 benchmarks, while Kimi K3 is better at 1 benchmark (DeepSWE 1.1).
Kimi K3 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) is 1.4x cheaper than Kimi K3 ($2.85/1M tokens).
For output processing, GPT-6 Sol ($10.00/1M tokens) is 1.4x cheaper than Kimi K3 ($14.25/1M tokens).
In conclusion, Kimi K3 is more expensive than GPT-6 Sol.*
* 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 Kimi K3's 1,048,576 tokens. Kimi K3 can generate longer responses up to 1,048,576 tokens, while GPT-6 Sol is limited to 128,000 tokens.
Input capabilities
Documented input modalities across available providers
Both GPT-6 Sol and Kimi K3 support multimodal inputs.
They are both capable of processing various types of data, offering versatility in application.
GPT-6 Sol
Kimi K3
License
Usage and distribution terms
GPT-6 Sol is licensed under a proprietary license, while Kimi K3 uses Kimi K3 License.
License differences may affect how you can use these models in commercial or open-source projects.
Proprietary
Closed source
Kimi K3 License
Open weights
Release Timeline
When each model was launched
GPT-6 Sol was released on 2026-09-22, while Kimi K3 was released on 2026-07-16.
GPT-6 Sol is 2 months newer than Kimi K3.
Sep 22, 2026
0 days ago
2mo newerJul 16, 2026
2 months ago
Knowledge Cutoff
When training data ends
GPT-6 Sol has a documented knowledge cutoff of 2026-04-20, while Kimi K3'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 Kimi K3's cutoff date.
Apr 2026
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Provider Availability
GPT-6 Sol is available from OpenAI. Kimi K3 is available from DeepInfra, Fireworks, Moonshot AI, Novita, Together.
GPT-6 Sol
Kimi K3
Outputs Comparison
Judge for yourself.
Run your own prompts against GPT-6 Sol and Kimi K3 side-by-side, then vote on the output you prefer.
FAQ
Common questions about GPT-6 Sol vs Kimi K3.