Grok 4.6 vs Qwen3.8 Flash
Grok 4.6 and Qwen3.8 Flash are closely matched at 46.7 and 49.1 on the LLM Stats Score. Qwen3.8 Flash is 13.0x cheaper per token.
xAI · Alibaba Cloud / Qwen Team · Updated for 2026
Which is better?
Grok 4.6 and Qwen3.8 Flash are closely matched on the overall LLM Stats Score at 46.7 and 49.1.
In the 1 individual benchmarks reported for both models, Grok 4.6 wins 1; this is a narrower head-to-head signal than the composite indexes.
On price, Qwen3.8 Flash is roughly 13.0x cheaper per token on a blended 3:1 input/output basis, which adds up quickly at production volume.
Qwen3.8 Flash also accepts a larger context window (1,000,000 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 Grok 4.6
- you value its reported benchmark strengths — it wins 1 of 1 exact shared results
Choose Qwen3.8 Flash
- cost matters — it's about 13.0x cheaper per token
- you process long inputs — it offers a 1,000,000 token context window
- you want the most recent training data — it shipped Aug 2026
At a glance
The differences that matter most.
Capability indexes
Additional strengths measured across groups of related public benchmarks
Individual benchmarks
11 reported for Grok 4.6 · 22 for Qwen3.8 Flash
Grok 4.6 outperforms in 1 benchmarks (DeepSWE 1.1), while Qwen3.8 Flash is better at 0 benchmarks.
Grok 4.6 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, Grok 4.6 ($2.00/1M tokens) is 13.3x more expensive than Qwen3.8 Flash ($0.15/1M tokens).
For output processing, Grok 4.6 ($6.00/1M tokens) is 12.8x more expensive than Qwen3.8 Flash ($0.47/1M tokens).
In conclusion, Grok 4.6 is more expensive than Qwen3.8 Flash.*
* Using a 3:1 ratio of input to output tokens
Context Window
Maximum input and output token capacity
Qwen3.8 Flash accepts 1,000,000 input tokens compared to Grok 4.6's 500,000 tokens. Only Qwen3.8 Flash specifies output context (131,072 tokens).
Input capabilities
Documented input modalities across available providers
Both Grok 4.6 and Qwen3.8 Flash support multimodal inputs.
They are both capable of processing various types of data, offering versatility in application.
Grok 4.6
Qwen3.8 Flash
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
Grok 4.6 was released on 2026-08-12, while Qwen3.8 Flash was released on 2026-08-26.
Qwen3.8 Flash is 0 month newer than Grok 4.6.
Aug 12, 2026
1 months ago
Aug 26, 2026
3 weeks ago
2w newerKnowledge Cutoff
When training data ends
Grok 4.6 has a documented knowledge cutoff of 2026-02-01, while Qwen3.8 Flash's cutoff date is not specified.
We can confirm Grok 4.6's training data extends to 2026-02-01, but cannot make a direct comparison without Qwen3.8 Flash's cutoff date.
Feb 2026
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Provider Availability
Grok 4.6 is available from xAI. Qwen3.8 Flash is available from Novita.
Grok 4.6
Qwen3.8 Flash
Outputs Comparison
Judge for yourself.
Run your own prompts against Grok 4.6 and Qwen3.8 Flash side-by-side, then vote on the output you prefer.
FAQ
Common questions about Grok 4.6 vs Qwen3.8 Flash.