Model profile
Reka AI

Reka Flash 3

Reka Flash 3 is a budget-priced text-first model from Reka AI with balanced runtime profile, standard context posture, and the clearest fit around long-context research / reasoning.

Best for: Long-context research / ReasoningBalanced latencyStandard contextBudget pricing
Intelligence
9.5

Benchmark blend

Coding
8.9

Dev workflow signal

Context
66K Tokens

Standard

Input Price
$0.20

Budget tier

Decision snapshot
41

Reka Flash 3 currently reads as a budget text-first option with standard context and a balanced runtime profile.

Overall profile
Use-case specific
Best for
Long-context research / Reasoning
Latency tier
Balanced
Price tier
Budget
Source coverage
OpenRouterArtificial Analysis

Decision Strip

Decision rail before the raw tables

Core buy-side signals stay in one pass. The rest of the page expands only after intelligence, speed, context, and price are clear.

Intelligence
9.5
10

General reasoning and benchmark headroom.

Limited
Speed
89 tok/s
69

TTFT 1.25s

Competitive
Context
66K Tokens
64

How much prompt and task state can stay in view.

Competitive
Price
$0.20
86

$0.80 output / 1M

Efficient

Editorial Profile

Reka Flash 3 in one narrative

Positioning, tradeoffs, and fit are consolidated into one read instead of repeating the same story across separate cards.

Use-case specificCoding score 9Math score 34

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 32K context length and optimized through reinforcement learning (RLOO), it provides competitive performance comparable to proprietary models within a smaller parameter footprint. Ideal for low-latency, local, or on-device deployments, Reka Flash 3 is compact, supports efficient quantization (down to 11GB at 4-bit precision), and employs explicit reasoning tags ("<reasoning>") to indicate its internal thought process. Reka Flash 3 is primarily an English model with limited multilingual understanding capabilities. The model weights are released under the Apache 2.0 license.

Identity

Reka AI text-first profile

Positioning

Long-context research / Reasoning with standard context and balanced runtime.

Cost posture

Efficient spend profile. More comfortable for sustained prompt volume if the capability fit is right.

Strengths
  • Latency and throughput look responsive enough for interactive loops.

Tradeoffs
  • Budget-friendly input pricing is a strength, but raw capability may vary by workload.

  • Latency is balanced rather than ultra-fast, which is fine for most workflows but not the snappiest tier.

  • Current metadata points to a text-first profile rather than a broad multimodal one.

  • Context window is more comfortable for focused tasks than extremely long sessions.

Best fit
  • Focused chat, retrieval-augmented flows, and narrower production tasks.

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Reka AI

Reka Flash (Sep '24)

Intelligence
12.0
Context
N/A
Input Price
$0.20

Benchmarks

Grouped by job-to-be-done

Only benchmark categories with actual signal are shown. Secondary values stay as simple definitions instead of nested micro-cards.

General intelligence

Broad reasoning, knowledge depth, and flagship benchmark posture.

Intelligence Index
9.5
MMLU Pro
66.9%
GPQA
52.9%
HLE
5.1%
Coding

Software implementation, debugging quality, and coding benchmark signal.

Coding Index
8.9
LiveCodeBench
0.435
SciCode
26.7%
Math

Formal reasoning, structured problem solving, and competition-style math.

Math Index
33.7
AIME
51.0%
AIME 2025
33.7%
Math 500
89.3%
Agent / tool use

Long-horizon execution quality and interactive benchmark evidence.

IFBench
30.4%
TAU2
0.0%
TerminalBench Hard
0.0%
LCR
0.0%

Specs & Pricing

Technical snapshot and cost posture

Specs stay neutral, pricing gets emphasis through values rather than extra containers. Raw provider internals remain in metadata at the end.

Technical snapshot
Context Window
66K Tokens
Vision
Text-first
Modalities
text
Tokenizer
Other
Max Completion
65536
Moderation
No
Supported Parameters
frequency_penaltyinclude_reasoningmax_tokenspresence_penaltyreasoningseedstoptemperaturetop_ktop_p
Input Modalities
text
Output Modalities
text
Price architecture
Input
per 1M input tokens
$0.20
Output
per 1M output tokens
$0.80
Blended
AA 3:1 mix
$0.35

This model is relatively efficient on price. It is the easier fit when sustained prompt volume matters.

Metadata

Raw source tables at the end

Verification details remain available, but the page no longer forces them ahead of the editorial read.