Reka: Flash 3

rekaai · Released Mar 12, 2025
DFO score #603 / 713
9.2 leaderboard score
Speed #201 / 340
82.2 tok/s
Input Price #249 / 713
$0.100 per 1M tokens
Output Price #222 / 713
$0.200 per 1M tokens
Context #502 / 713
65,536 tokens

Analysis Summary

Reka Flash 3 is a text-only model with a 65K context window and function calling. Its benchmark results show limited overall intelligence and weak instruction-following performance, while the coding and math measurements offer some narrow task potential. Listed pricing is $0.10 per million input tokens and $0.20 per million output tokens, which supports inexpensive experimentation.

That cost profile could suit low-risk, lightweight text processing where quality requirements are modest and outputs are checked. The available results do not support relying on it for nuanced client-facing copy, complex reasoning, or dependable coding work. Function calling is available, but the supplied data does not show an agentic index that would establish strong multi-step execution.

Use Flash 3 only for tightly scoped, low-cost tasks after validating outputs against the team's own examples. Keep human review in place for published content and operational decisions.

Assessed September 23, 2026

Editorial notes

Reka Flash 3 is an inexpensive text model with function calling and a 65K context, but its measured reasoning and instruction-following results are weak.

The DFO score ranks models on the Artificial Analysis Intelligence Index and is refreshed as new models launch. The write-up and verdict are our own. Feedback?

DFO Verdict

Reka Flash 3 is an inexpensive text model with function calling and a 65K context, but its measured reasoning and instruction-following results are weak.

#603 of 713 overall Down 11 this week

Benchmarks

Intelligence Index 5.6 #374 of 439 · Artificial Analysis
Coding Index Not published yet Artificial Analysis
Agentic Index Not published yet Artificial Analysis
Creative Writing Not rated Arena rating
Instruction Following Not rated Arena rating
GPQA Diamond 52.9%
HLE 5.1%
MMLU Pro 66.9%
MATH 500 89.3%
AIME 51%
AIME 2025 33.7%
SciCode 26.7%
LiveCodeBench 43.5%
IFBench 30.4%

Artificial Analysis data refreshed Oct 18, 2026. Arena ratings from the Oct 13, 2026 text leaderboard, with style control. Bars: magenta = reasoning, ink = coding and agents, cyan = instructions and long context.

Artificial Analysis has not published coding or agentic results for Reka: Flash 3 yet. Until it does, the model sits below tested models on the Coding and AI Agents lists.

How Reka: Flash 3 compares

Reka: Flash 3 ranks #374 of 439 AI models we track for overall intelligence. Its 66K-token context window is larger than 30% of the models we list. At $0.10 per million input tokens it is cheaper than 65% of comparable models.

Position in the field
DFO score: ahead of 16% of models #597
Speed: faster than 41% of models #201
Price: cheaper than 65% of models #249
Context: larger than 30% of models #502
worst in fieldmedianbest in field
Price vs frontier peers · $ per 1M tokens
Reka: Flash 3 $0.10 in $0.20 out
Anthropic: Claude Opus 5.5 $4.00 in $20.00 out
Google: Gemini 4 Argon $2.00 in $10.00 out
Anthropic: Claude Fable 5.1 $10.00 in $50.00 out

Dark bar = input · light bar = output, scaled to the priciest peer.

Context window vs peers · tokens

1M tokens ≈ 8 full-length novels or ~2,500 pages of business documents in a single request.

Pricing

Token Type Cost per 1M tokens Cost per 1K tokens
Input $0.10 $0.000100
Output $0.20 $0.000200

What would Reka: Flash 3 cost your business?

Pick the job that looks most like yours, then fine-tune with the sliders. Estimates update live.

A website chatbot handling around 100 customer conversations a day, a few short messages each.

3,000
One request is one message, email, draft or automation call.
1,200 tokens

$0.468/mo Reka: Flash 3 $0.0002 per request
$31.68/mo Anthropic: Claude Opus 5.5 $0.01 per request
$7.92/mo Google: Gemini 4 Argon (batch) · best value $0.0026 per request

Full calculator with 713 models → Price Calculator

DFO AI AUTOMATION

These numbers get smaller with the right architecture.

We route routine calls to cheap models and save Reka: Flash 3 for the hard ones. Most clients cut their estimate by 60-80%.

Talk to our team

About Reka: Flash 3

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..

Frequently asked questions about Reka: Flash 3

How much does Reka: Flash 3 cost?

Reka: Flash 3 costs $0.10 per million input tokens and $0.20 per million output tokens.

What is the context window of Reka: Flash 3?

Reka: Flash 3 has a context window of 65,536 tokens (66K).

What can Reka: Flash 3 do?

Reka: Flash 3 supports function calling.

Who created Reka: Flash 3?

Reka: Flash 3 is developed by Reka and was released on March 12, 2025.

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