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DeepSeek V4.1 Flash vs Muse Spark 1.3 Contributor

Detailed technical comparison between DeepSeek V4.1 Flash (DeepSeek) and Muse Spark 1.3 Contributor (Meta). 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 WinsvsMuse Spark 1.3 Contributor: 6 Wins
Context Leader

Tie

Equal Capacity
Agentic Tool-Calling

Tie

Equal Capability
Lowest Latency (TTFT)

Tie

Equal Speed
Input Price Leader

Muse Spark 1.3 Contributor

$0.10 / 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 →
Metaactive

Muse Spark 1.3 Contributor

Muse Spark 1.3 Contributor is an advanced artificial intelligence model engineered by Meta. Tailored for complex multi-step reasoning, programming synthesis, and extended document comprehension, Muse Spark 1.3 Contributor represents a key architectural iteration in the Meta model family. First released in 2026-09-02, 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), Muse Spark 1.3 Contributor processes multi-file code repositories, lengthy technical reports, and complex prompts in a single inference call.

View Muse Spark 1.3 Contributor Full Specs →

Technical Specifications

🏆 = Superior Spec
SpecificationDeepSeek V4.1 FlashMuse Spark 1.3 Contributor
ProviderDeepSeekMeta
Context Window1,048,576 tokens1,048,576 tokens
Agent SuitabilityNot yet benchmarkedNot yet benchmarked
Time to First Token (TTFT)No public TTFT dataNo public TTFT data
Deployment Modelself hostablemanaged api
Production StabilityBeta Access (est.)Beta Access (est.)
API AvailableYesYes
Released Date2026-09-102026-09-02

API Pricing Comparison

Input Price per Million Tokens

DeepSeek V4.1 Flash

$0.15

Muse Spark 1.3 Contributor

$0.10

Output Price per Million Tokens

DeepSeek V4.1 Flash

$0.60

Muse Spark 1.3 Contributor

$0.20

💡 Cost Ratio: Muse Spark 1.3 Contributor is 1.5x cheaper per input token than DeepSeek V4.1 Flash.

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%vs81.2%+8.4% Muse Spark 1.3 Contributor
DeepSeek V4.1 Flash
Muse Spark 1.3 Contributor 🏆
HumanEvalPython coding & logic synthesis
69.0%vs79.4%+10.4% Muse Spark 1.3 Contributor
DeepSeek V4.1 Flash
Muse Spark 1.3 Contributor 🏆
MATHComplex mathematical problem solving
42.2%vs56.6%+14.4% Muse Spark 1.3 Contributor
DeepSeek V4.1 Flash
Muse Spark 1.3 Contributor 🏆
GPQAGraduate-level expert reasoning
29.6%vs38.6%+9.0% Muse Spark 1.3 Contributor
DeepSeek V4.1 Flash
Muse Spark 1.3 Contributor 🏆
HellaSwagCommonsense reasoning and inference
76.8%vs80.8%+4.0% Muse Spark 1.3 Contributor
DeepSeek V4.1 Flash
Muse Spark 1.3 Contributor 🏆
MT-BenchMulti-turn conversation flow quality
7.9%vs8.3%+0.4% Muse Spark 1.3 Contributor
DeepSeek V4.1 Flash
Muse Spark 1.3 Contributor 🏆

DeepSeek V4.1 Flash Quirks & Gotchas

No developer gotchas reported.

Muse Spark 1.3 Contributor Quirks & Gotchas

No developer gotchas reported.

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