Reka Flash 3 is Reka AI's language model with a 66K context window, starting at $0.100 / 1M input and $0.200 / 1M output. A 21-billion-parameter general-purpose instruction-tuned LLM from Reka excelling at chat, coding, instruction-following, and function calling.
Specifications
Canonical IDreka-flash-3
TypeLanguage
StatusActive
CreatorReka AIReka AI
Providers
Context Window66K tokens
Input ModalitiesText
Output ModalitiesText
Reasoning Effortsdefault
Release Date · 1 year ago
Knowledge Cutoff
Benchmarks
Intelligence Index
9.5
#405
Coding Index
8.9
#315
Math Index
33.7
#171
MMLU-Pro
0.7
#226
GPQA
0.5
#299
HLE
0.1
#277
LiveCodeBench
0.4
#156
AIME
0.5
#49
IFBench
0.3
#328
Time to First Token
1.80s
#411
SciCode
0.3
#276
MATH-500
0.9
#67
AIME 2025
0.3
#171
LCR
0.0
#385
TerminalBench Hard
0.0
#380
TAU2
0.0
#384
Output TPS
93.7
#134

Capabilities

Input1/5
Text
Image·
Audio·
Video·
PDF·
Output1/5
Text
Image·
Audio·
Video·
Embedding·
Capabilities1/13
Reasoning
Adaptive Reasoning·
Function Calling·
Parallel Function Calling·
Structured Outputs·
Native JSON Schema·
Web Search·
URL Context·
Computer Use·
Code Execution·
File Search·
Prompt Caching·
Assistant Prefill·

Pricing by Provider

ProviderStandard
Input
$ / 1M
Output
$ / 1M
OpenRouter logo
OpenRouter
rekaai/reka-flash-3
$0.100$0.200

Cost Calculator

Preset:

Versions

VersionReleasedContextInput / 1MOutput / 1MStatus
Reka Flash 366K$0.100$0.200Current
Reka Edge16K$0.100$0.100Available
Reka Flash100KAvailable
Reka Core32KAvailable

Model IDs