reasoning
Reka Flash 3
Reka 21B general-purpose reasoning model released as an open research preview under Apache 2.0.
Levelmodel
Classreasoning
Parameters21B
Context32,000
Released10 Mar 2025
Opennessopen weights permissive
Runs onconsumer GPU
Statusactive
Benchmark Results
vendor-reported
MMLU-Proknowledge and reasoning
vendor-reported
65
050100
Score in %. Higher is better.
Reka Flash 3 announcement
Where this comes from
Every score names who ran it: vendor-reported, maintainer-run or independent. A rank is shown with the population it was ranked in (gap rule 3).
R&D Topics
Identity
Where this comes from
Developer and dates from the research notes. Release date is the vendor's public announcement; weights date is when open weights were published.
Architecture and Size
- Architecture
- dense transformer Trained from scratch; released in Llama-compatible format
- Total parameters
- 21B sources
- Active parameters
- –
- Checkpoint parameters
- –
- Context length
- 32,000 tokens
- Input
- text
- Output
- text
Where this comes from
Parameter counts as the developer states them. Where the checkpoint holds a different total, both are shown (register A16).
Openness and Access
- Openness
- open weights permissive
- Licence
- Apache License 2.0 sources
- Access routes
- open weights download
Where this comes from
The licence file governs over registry tags and aggregator labels.
Deployment
- Runs on
- consumer GPU
- Footprint
- 39GB at fp16, about 11GB with 4-bit quantization
- Runtimes
- not in the notes
Where this comes from
Deployment tiers and runtimes as named in the notes. Footprint is the notes' figure, not a measurement by AURION.
Indonesia
- Indonesian support
- not stated
- Regional languages
- not in the notes
- Jakarta hosting
- unknown
- Languages
- Primarily English
Where this comes from
Indonesia fields are carried on every model; unknown is an allowed value.
Lineage
The notes record no lineage for this model.
Industry Use Cases
No industry use case links this model.
Links
DeveloperRekastartup
RekastartupModelReka Flash 3Reka, reasoning
Reka Flash 3Reka, reasoningR&D TopicsReasoning via Large-Scale RL
Use CasesChinese Medical LLMsHealthcareUse cases of models in the same R&D topic; none is recorded for this model itself.
Who Runs Itnone recordedDeployments of these use cases; none names this model.
Organisations 1
Sources
- reka.ai/news/introducing-reka-flash https://reka.ai/news/introducing-reka-flash
- huggingface.co/RekaAI/reka-flash-3 https://huggingface.co/RekaAI/reka-flash-3
To cite this page: Project AURION, AI Use-Cases Research & Innovation, "Reka Flash 3", https://aurion.semai.id/models/reka-ai-reka-flash-3/, records of October 2026.