AI Models · Open-Source vs Paid

Reka Flash 3 Open vs Muse Spark 1.2 Contributor Paid

Reka Flash 3 vs Muse Spark 1.2 Contributor compared — price per token, context window, multimodality, openness and which to choose. Can the open-source model replace the paid one? Full 2026 breakdown.

Prices & specs refreshed from live data · olud.ai

Open-model prices = cheapest provider via OpenRouter; official maker rates may be higher.

Reka Flash 3OpenRekaai
$0.1 /M input
$0.2 /M outputNo per-token fees if you self-host
TypeOpen-weight
Context window66K tokens
MultimodalNo
Self-hostYes
Muse Spark 1.2 ContributorPaidMeta
$0.1 /M input
$0.2 /M outputManaged API (no infra to run)
TypeProprietary
Context window1M tokens
MultimodalYes
Self-hostNo
Choose Reka Flash 3 if you want to self-host, keep your data private and skip per-token fees — it's open-weight and runs on your own hardware. Choose Muse Spark 1.2 Contributor if you want frontier capability through a managed API with zero infrastructure to run.

Reka Flash 3 vs Muse Spark 1.2 Contributor specs

SpecReka Flash 3Muse Spark 1.2 ContributorWinner
MakerRekaaiMeta
TypeOpen-weightProprietaryReka Flash 3
Context window66K tokens1M tokensMuse Spark 1.2 Contributor
Input price$0.1/M · free self-host$0.1/M= Tie
Output price$0.2/M · free self-host$0.2/M= Tie
Vision / multimodalNoYesMuse Spark 1.2 Contributor
Tool / function callingNoYesMuse Spark 1.2 Contributor
Self-hostableYesNo (API only)Reka Flash 3
LicenseOpen weightsProprietaryReka Flash 3

Price gap & when to choose each

Choose Reka Flash 3 if…
  • You want to self-host or run on your cloud
  • You prioritize data privacy & control
  • You want the lowest operating costs
  • You are building open or reproducible AI
Choose Muse Spark 1.2 Contributor if…
  • You want frontier performance through a managed API
  • You need the longer 1M context window
  • You value reliability & ecosystem
  • You don't want to manage infrastructure

Feature comparison

CapabilityReka Flash 3Muse Spark 1.2 Contributor
Open weights (downloadable)
Self-hostable
Runs fully offline
Vision / multimodal
Tool / function calling
1M+ context window

Benchmarks: Reka Flash 3 vs Muse Spark 1.2 Contributor

Independent benchmark scores measured by Artificial Analysis. Higher is better (except latency).

Reka Flash 3
Muse Spark 1.2 Contributor
Intelligence index
5.6
Math index
33.7
GPQA
52.9%
MMLU-Pro
66.9%
Humanity's Last Exam
4.4%
Long Context Reasoning
0%
LiveCodeBench
43.5%
MATH-500
89.3%
AIME
51%
AIME 2025
33.7%
IFBench
30.4%
τ²-Bench
0%
Terminal-Bench Hard
0%
Speed
85.9 tok/s
Latency
0.88s
Intelligence per $
16

Benchmark data by Artificial Analysis.

How Reka Flash 3 and Muse Spark 1.2 Contributor score

🏆 Best value & openness: Reka Flash 3 (4.0 vs 3.5 / 5)
CriterionReka Flash 3Muse Spark 1.2 Contributor
Cost-efficiency5.05.0
Context window3.05.0
Openness5.01.5
Self-hosting5.01.0
Multimodality2.05.0

Scores come from live data — output price (cost), context length, open vs closed weights (openness & self-hosting) and vision/tool support (multimodality). Raw task quality isn't scored here; it depends on your benchmark — see the verdict.

What each model is

Reka Flash 3 Open

Rekaai · Open-weight

Reka Flash 3 is a general-purpose, instruction-tuned large language model with 21 billion parameters, developed by Reka. It excels at general chat, coding tasks, instruction-following, and function calling. Featuring a...

Muse Spark 1.2 Contributor Paid

Meta · Proprietary

Muse Spark 1.2 contributor tier is a reasoning model from Meta designed for developers who want to start building at an even lower cost. It’s meaningfully cheaper than Muse Spark...

Other models in these families

These variants are tracked but not compared here — one page per family keeps the comparison readable.

Other variants tracked
Reka Edge

Frequently asked questions

Is Reka Flash 3 as good as Muse Spark 1.2 Contributor?

Reka Flash 3 is open-weight and competitive on many tasks, but Muse Spark 1.2 Contributor may still lead on the hardest reasoning and agentic work. The gap keeps narrowing — benchmark both on your actual use case before deciding.

Can I run Reka Flash 3 locally?

Yes. Reka Flash 3 has open weights, so you can self-host it on your own GPUs or run it via a low-cost API. Muse Spark 1.2 Contributor is API-only and cannot be self-hosted.

Reka Flash 3 vs Muse Spark 1.2 Contributor — which should I pick in 2026?

Choose Reka Flash 3 if you want to self-host, keep your data private and skip per-token fees — it's open-weight and runs on your own hardware. Choose Muse Spark 1.2 Contributor if you want frontier capability through a managed API with zero infrastructure to run.

People also compare

Explore more open-source AI

Browse the full open-source model leaderboard, thousands of tools and live benchmarks — all in one place.

Open the leaderboard →