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Reka Flash 3


Reka Flash 3 is Reka AI logoReka AI's language model with a 66K context window, starting at $0.100 / 1M input and $0.200 / 1M output. A 21B-parameter general-purpose instruction-tuned LLM from Reka AI excelling at chat, coding, instruction-following, and function calling.
Spec
Canonical IDreka-flash-3
TypeLanguage
StatusActive
CreatorReka AIReka AI
Providers
Context Window66K tokens
Input ModalitiesText
Output ModalitiesText
Reasoning Effortsdefault
Release Date · 1 year ago
Intelligence Index
9.5
#279
Coding Index
8.9
#208
Math Index
33.7
#117
MMLU-Pro
0.7
#170
GPQA
0.5
#187
HLE
0.1
#171
LiveCodeBench
0.4
#105
AIME
0.5
#32
IFBench
0.3
#217
Time to First Token
0.96s
#230
SciCode
0.3
#175
MATH-500
0.9
#48
AIME 2025
0.3
#117
LCR
0.0
#266
TerminalBench Hard
0.0
#262
TAU2
0.0
#266
Output TPS
94.2
#94

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:
Compares every provider & tier in USD

Versions

VersionReleasedContextInput / 1MOutput / 1MStatus
Reka Flash 366K$0.100$0.200Current
Reka Edge16K$0.100$0.100Available
Reka Core32K$11.00$11.00Available
Reka Flash100K$0.900$0.900Available

Model IDs