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DeepSeek V4.1 Flash vs Qwen3.8 Max Prime

Detailed technical comparison between DeepSeek V4.1 Flash (DeepSeek) and Qwen3.8 Max Prime (Alibaba). Review live API token pricing, context window capabilities, time-to-first-token latency, and verified benchmark scores side-by-side.

⚡ Executive Summary & Verdict

Comparison Snapshot

DeepSeek V4.1 Flash: 0 WinsvsQwen3.8 Max Prime: 6 Wins
Context Leader

DeepSeek V4.1 Flash

1,048,576 tokens
Agentic Tool-Calling

Tie

Equal Capability
Lowest Latency (TTFT)

Tie

Equal Speed
Input Price Leader

DeepSeek V4.1 Flash

$0.02 / MTok
DeepSeekactive

DeepSeek V4.1 Flash

DeepSeek V4.1 Flash is an advanced artificial intelligence model engineered by DeepSeek. Tailored for complex multi-step reasoning, programming synthesis, and extended document comprehension, DeepSeek V4.1 Flash represents a key architectural iteration in the DeepSeek model family. First released in 2026-09-10, it serves enterprise developers, research teams, and autonomous system architects requiring strict instruction compliance. Featuring an input capacity of 1,048,576 tokens (approximately 1,398 words), DeepSeek V4.1 Flash processes multi-file code repositories, lengthy technical reports, and complex prompts in a single inference call.

View DeepSeek V4.1 Flash Full Specs →
Alibabaactive

Qwen3.8 Max Prime

Qwen3.8 Max Prime is an advanced artificial intelligence model engineered by Alibaba. Tailored for complex multi-step reasoning, programming synthesis, and extended document comprehension, Qwen3.8 Max Prime represents a key architectural iteration in the Alibaba model family. First released in 2026-09-23, it serves enterprise developers, research teams, and autonomous system architects requiring strict instruction compliance. Featuring an input capacity of 1,000,000 tokens (approximately 1,333 words), Qwen3.8 Max Prime processes multi-file code repositories, lengthy technical reports, and complex prompts in a single inference call.

View Qwen3.8 Max Prime Full Specs →

Technical Specifications

🏆 = Superior Spec
SpecificationDeepSeek V4.1 FlashQwen3.8 Max Prime
ProviderDeepSeekAlibaba
Context Window1,048,576 tokens🏆1,000,000 tokens
Agent SuitabilityNot yet benchmarkedNot yet benchmarked
Time to First Token (TTFT)No public TTFT dataNo public TTFT data
Deployment Modelself hostableself hostable
Production StabilityBeta Access (est.)Beta Access (est.)
API AvailableYesYes
Released Date2026-09-102026-09-23

API Pricing Comparison

Input Price per Million Tokens

DeepSeek V4.1 Flash

$0.02

Qwen3.8 Max Prime

$4.00

Output Price per Million Tokens

DeepSeek V4.1 Flash

$0.40

Qwen3.8 Max Prime

$12.00

💡 Cost Ratio: DeepSeek V4.1 Flash is 202.0x cheaper per input token than Qwen3.8 Max Prime.

Want to test both models live?

Run side-by-side prompt benchmarks in our dynamic multi-model Sandbox. Compare execution speeds, latency metrics, and compute actual costs in real-time.

Benchmark Performance Metrics

Standardized Scores (0–100%)

Scores show verified raw accuracy percentages across standardized AI evaluation suites. Higher bars indicate superior performance in that domain.

MMLUGeneral knowledge & multi-task understanding
72.8%vs86.6%+13.8% Qwen3.8 Max Prime
DeepSeek V4.1 Flash
Qwen3.8 Max Prime 🏆
HumanEvalPython coding & logic synthesis
69.0%vs85.8%+16.8% Qwen3.8 Max Prime
DeepSeek V4.1 Flash
Qwen3.8 Max Prime 🏆
MATHComplex mathematical problem solving
42.2%vs67.0%+24.8% Qwen3.8 Max Prime
DeepSeek V4.1 Flash
Qwen3.8 Max Prime 🏆
GPQAGraduate-level expert reasoning
29.6%vs48.4%+18.8% Qwen3.8 Max Prime
DeepSeek V4.1 Flash
Qwen3.8 Max Prime 🏆
HellaSwagCommonsense reasoning and inference
76.8%vs87.6%+10.8% Qwen3.8 Max Prime
DeepSeek V4.1 Flash
Qwen3.8 Max Prime 🏆
MT-BenchMulti-turn conversation flow quality
7.9%vs9.0%+1.1% Qwen3.8 Max Prime
DeepSeek V4.1 Flash
Qwen3.8 Max Prime 🏆

DeepSeek V4.1 Flash Quirks & Gotchas

No developer gotchas reported.

Qwen3.8 Max Prime Quirks & Gotchas

No developer gotchas reported.

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