Qwen3.8 Flash vs Solar Pro 4
Qwen3.8 Flash leads the LLM Stats Score 49.2 to 35.8. Qwen3.8 Flash is 2.3x cheaper per token.
Alibaba Cloud / Qwen Team · Upstage · Updated for 2026
Which is better?
Qwen3.8 Flash leads the overall LLM Stats Score 49.2 to 35.8, ranking #20 overall.
In the 1 individual benchmarks reported for both models, Qwen3.8 Flash wins 1; this is a narrower head-to-head signal than the composite indexes.
On price, Qwen3.8 Flash is roughly 2.3x 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 Qwen3.8 Flash
- overall performance matters — it scores 49.2 and ranks #20 on LLM Stats
- your work emphasizes reasoning and coding — it leads those capability indexes
- you value its reported benchmark strengths — it wins 1 of 1 exact shared results
- cost matters — it's about 2.3x 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
Choose Solar Pro 4
- you want predictable pricing at $0.30/M input and $1.20/M output
At a glance
The differences that matter most.
Capability indexes
Additional strengths measured across groups of related public benchmarks
Individual benchmarks
22 reported for Qwen3.8 Flash · 9 for Solar Pro 4
Qwen3.8 Flash outperforms in 1 benchmarks (GPQA), while Solar Pro 4 is better at 0 benchmarks.
Qwen3.8 Flash 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, Qwen3.8 Flash ($0.15/1M tokens) is 2.0x cheaper than Solar Pro 4 ($0.30/1M tokens).
For output processing, Qwen3.8 Flash ($0.47/1M tokens) is 2.6x cheaper than Solar Pro 4 ($1.20/1M tokens).
In conclusion, Solar Pro 4 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 Solar Pro 4's 524,288 tokens. Both models can generate responses up to 131,072 tokens.
Input capabilities
Documented input modalities across available providers
Qwen3.8 Flash supports multimodal inputs, whereas Solar Pro 4 does not.
Qwen3.8 Flash can handle both text and other forms of data like images, making it suitable for multimodal applications.
Qwen3.8 Flash
Solar Pro 4
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
Qwen3.8 Flash was released on 2026-08-26, while Solar Pro 4 was released on 2026-08-06.
Qwen3.8 Flash is 1 month newer than Solar Pro 4.
Aug 26, 2026
1 weeks ago
2w newerAug 6, 2026
1 months ago
Knowledge Cutoff
When training data ends
Neither model specifies a knowledge cutoff date.
Unable to compare the recency of their training data.
Provider Availability
Qwen3.8 Flash is available from Novita. Solar Pro 4 is available from Upstage.
Qwen3.8 Flash
Solar Pro 4
Outputs Comparison
Judge for yourself.
Run your own prompts against Qwen3.8 Flash and Solar Pro 4 side-by-side, then vote on the output you prefer.
FAQ
Common questions about Qwen3.8 Flash vs Solar Pro 4.