Pairwise benchmark snapshot · Aug 17, 2026noindex (thin pair)

GPT-4o mini vs Reka Flash 3 benchmark

Name: GPT-4o mini vs Reka Flash 3 AI benchmark comparison
Creator: CompareLLM
License: https://creativecommons.org/licenses/by/4.0/

In this head-to-head showdown, Reka Flash 3 is more budget-friendly at $0.2/1M per 1M output tokens. Review the complete breakdown below to determine which model best fits your performance and budget requirements.

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Executive Verdict Summary

Reka Flash 3 holds empirical advantage (2 of 3 metrics)

Coding / SWESWE-bench

GPT-4o miniTop code solve rate

ReasoningGPQA / Live

GPT-4o miniTop logical accuracy

Best Value$/1M Tok

Reka Flash 3Lowest API billing cost

Speed / TokTok/Sec

GPT-4o miniFastest stream rate

Verified Advantage Breakdown

3 benchmarks evaluated across capability, speed, and cost

GPT-4o mini (1)Reka Flash 3 (2)

GPT-4o mini

1 of 3 Wins

✓Context window

Reka Flash 3

2 of 3 Wins

✓Input price✓Output price

OpenAI

Leads 1 of 3

GPT-4o mini

Legacy small OpenAI model. Useful as a cheap baseline.

4o MiniElo 1,272In: $0.15 · Out: $0.6/1M

rekaai

Leads 2 of 3

Reka Flash 3

Auto-discovered from OpenRouter (rekaai/reka-flash-3). Preview until a second source matches.

In: $0.1 · Out: $0.2/1M

GPT-4 Series Lineage & Sibling Variants

4 models

Currently comparing GPT-4o mini vs Reka Flash 3. Alternative family tiers available.

Active: GPT-4o mini

GPT-4o$10 GPT-4.5 Orion$150 OpenAI: GPT-4$60

Top Rival Showdowns for GPT-4o mini

All Matchups

Compare vs:vs Claude Opus 4.5 vs Gemini 3 Pro vs Grok 4.6 vs DeepSeek V4 Pro vs Qwen 3 Max

Preference Leader

No shared data

Single model data

Throughput Leader

No shared data

No latency data

Value per Dollar LeaderReka Flash 3 Wins

Reka Flash 3

$0.19999999999999998 / 1M output

Capability Percentiles

Relative percentile scores computed across all active models in the benchmark catalog.

Multi-Dimensional Capability Radar

Leaders Matchup Capability Radar

Comparing top standard models across 6 key capability dimensions. Tap any spoke or dot to inspect.

Tap any node to inspect

0–100 %ile

Overall Matchup Breakdown

Category wins across reasoning intelligence, generation speed, and token cost.

GPT-4o mini (7)vsReka Flash 3 (2)

GPT-4o mini: 7W (78%)Reka Flash 3: 2W (22%)

← GPT-4o miniReka Flash 3 →

🏆GPT-4o mini Leads(4/5)

Intelligence & Reasoning

Preference Elo, Coding proficiency, SWE-bench & LiveBench accuracy

Benchmark

GPT-4o minivsReka Flash 3

Preference Elo

1,272vs—

Coding Elo

—vs—

SWE-bench

41.2%vs—

LiveBench

48.1%vs—

GPQA Diamond

60.1%vs—

GPT-4o mini: 4WReka Flash 3: 0W

🏆GPT-4o mini Leads(2/2)

Speed & Latency

Generation throughput and time to first token responsiveness

Benchmark

GPT-4o minivsReka Flash 3

Output speed

160 tok/svs—

Time to first token

130 msvs—

GPT-4o mini: 2WReka Flash 3: 0W

🏆Reka Flash 3 Leads(2/3)

Pricing & Capacity

Cost per million tokens and max context window length

Benchmark

GPT-4o minivsReka Flash 3

Output price

$0.6/1Mvs$0.2/1M+$0.4/1M

Input price

$0.15/1Mvs$0.1/1M+$0.05/1M

Context window

128kvs66k+62k

GPT-4o mini: 1WReka Flash 3: 2W

Side-by-Side Benchmark Matrix

GPT-4o miniReka Flash 3

Preference Elo

GPT-4o mini1,272

Reka Flash 3—

LiveBench

GPT-4o mini48.1%

Reka Flash 3—

SWE-bench

GPT-4o mini41.2%

Reka Flash 3—

GPQA Diamond

GPT-4o mini60.1%

Reka Flash 3—

Time to first token

GPT-4o mini130 ms

Reka Flash 3—

Output speed

GPT-4o mini160 tok/s

Reka Flash 3—

Input priceReka Flash 3 +$0.05/1M

GPT-4o mini$0.15/1M

Reka Flash 3$0.1/1M

Output priceReka Flash 3 +$0.4/1M

GPT-4o mini$0.6/1M

Reka Flash 3$0.2/1M

Context windowGPT-4o mini +62k

GPT-4o mini128k

Reka Flash 366k

Benchmark	GPT-4o mini	Reka Flash 3	Advantage Delta
Preference Elo	1,272 lmarena · Aug 17, 2026	—	—
LiveBench	48.1% livebench · Aug 17, 2026	—	—
SWE-bench	41.2% swebench · Aug 17, 2026	—	—
GPQA Diamond	60.1% seed-bootstrap · Aug 1, 2026	—	—
Time to first token	130 ms seed-bootstrap · Aug 1, 2026	—	—
Output speed	160 tok/s seed-bootstrap · Aug 1, 2026	—	—
Input price	$0.15/1M openrouter · Aug 17, 2026	$0.1/1M openrouter · Aug 17, 2026	+$0.05/1M
Output price	$0.6/1M openrouter · Aug 17, 2026	$0.2/1M openrouter · Aug 17, 2026	+$0.4/1M
Context window	128k openrouter · Aug 17, 2026	66k openrouter · Aug 17, 2026	+62k

Workload Cost & Savings Calculator

Simulate monthly production API costs in USD (US Dollar).

Save 54% with Reka Flash 3

Monthly Volume50M tokens/mo

Quick Presets:

Token Ratio (In vs Out)70% In / 30% Out

RAG / Search (10% out)Coding / Chat (50% out)

GPT-4o mini$14.25 / mo

In: $5.25Out: $9

Reka Flash 3$6.50 / mo

In: $3.5Out: $3

Estimated Cost Delta

Reka Flash 3 is estimated to save $7.75/month ($93/year).

Based on 50M tokens (30% gen)

Key Selection Recommendations

1
Reka Flash 3:Pick Reka Flash 3 when you are optimizing output cost.

Recommended Workload Routing

Repo / coding agentsinsufficient data

Need SWE-bench on both sides.

High-volume chatReka Flash 3

Lower output list price ($0.2/1M).

Voice / low-latency UIinsufficient data

Need TTFT on both sides.

Long-document RAGGPT-4o mini

Larger window (128k).

Screenshots / visionGPT-4o mini

GPT-4o mini is the side marked multimodal in the catalog.

Target Workload	Recommended Pick	Evaluation Rationale
Repo / coding agents	insufficient data	Need SWE-bench on both sides.
High-volume chat	Reka Flash 3	Lower output list price ($0.2/1M).
Voice / low-latency UI	insufficient data	Need TTFT on both sides.
Long-document RAG	GPT-4o mini	Larger window (128k).
Screenshots / vision	GPT-4o mini	GPT-4o mini is the side marked multimodal in the catalog.

Cast Your Matchup Vote

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CompareLLM AI Matrix

Verified Head-to-Head Telemetry

LIVE BENCHMARK

OpenAI

GPT-4o mini

Elo 1,272

SWE-bench41.2%

Speed (tok/s)160 tok/s

Input / 1M Tokens$0.15/1M

Output / 1M Tokens$0.6/1M

rekaai

Reka Flash 3

Elo n/a

SWE-bench—

Speed (tok/s)66k

Input / 1M Tokens$0.1/1M

Output / 1M Tokens$0.2/1M

Frequently Asked Questions

Which is better overall, GPT-4o mini or Reka Flash 3?: We do not have preference Elo for both models, so we do not declare an overall winner. Compare the metrics that exist.
Which is better at coding, GPT-4o mini or Reka Flash 3?: SWE-bench is missing for at least one model, so we do not rank coding from a single number.
Which is cheaper to run in production?: Reka Flash 3 output tokens are $0.2/1M versus $0.6/1M. Input prices and retry rates still move the real bill.
Which is faster, GPT-4o mini or Reka Flash 3?: We do not have TTFT for both models.
Which has the larger context window?: GPT-4o mini accepts 128k tokens versus 66k.
Can I self-host either model?: Neither model is marked open-weights here. You are comparing hosted APIs.
Are these scores from CompareLLM’s own evals?: No. V1 aggregates public leaderboards (and optional first-party latency pings). Each cell names its source and date. Read /methodology.
What does preference Elo mean on this page?: Preference Elo is a crowd vote from LMArena / Arena. People see two hidden answers and pick the one they like more. The model that wins more often gets a higher Elo. That means people preferred it — not that it passed a school test. It is not SWE-bench, not accuracy, and not a number we invent. GPT-4o mini and Reka Flash 3 Elo cells are dated snapshots from the named source — we do not compute Arena ourselves.

Similar Head-to-Head Comparisons

All GPT-4o mini matchups →|All Reka Flash 3 matchups →

GPT-4o mini vs OpenAI o1-mini (next gpt-mini)GPT-5 vs GPT-4o mini GPT-4.5 Orion vs GPT-4o mini GPT-5.6 Sol vs GPT-4o mini GPT-5.6 Terra vs GPT-4o mini GPT-4 Turbo vs GPT-4o mini

Capability Percentiles

Relative percentile scores computed across all active models in the benchmark catalog.

Multi-Dimensional Capability Radar

Leaders Matchup Capability Radar

Comparing top standard models across 6 key capability dimensions. Tap any spoke or dot to inspect.

Tap any node to inspect

0–100 %ile

Side-by-Side Benchmark Matrix

GPT-4o miniReka Flash 3

Preference Elo

GPT-4o mini1,272

Reka Flash 3—

LiveBench

GPT-4o mini48.1%

Reka Flash 3—

SWE-bench

GPT-4o mini41.2%

Reka Flash 3—

GPQA Diamond

GPT-4o mini60.1%

Reka Flash 3—

Time to first token

GPT-4o mini130 ms

Reka Flash 3—

Output speed

GPT-4o mini160 tok/s

Reka Flash 3—

Input priceReka Flash 3 +$0.05/1M

GPT-4o mini$0.15/1M

Reka Flash 3$0.1/1M

Output priceReka Flash 3 +$0.4/1M

GPT-4o mini$0.6/1M

Reka Flash 3$0.2/1M

Context windowGPT-4o mini +62k

GPT-4o mini128k

Reka Flash 366k

Benchmark

GPT-4o mini

Reka Flash 3

Advantage Delta

Preference Elo

1,272

lmarena · Aug 17, 2026

—

LiveBench

48.1%

livebench · Aug 17, 2026

—

SWE-bench

41.2%

swebench · Aug 17, 2026

—

GPQA Diamond

60.1%

seed-bootstrap · Aug 1, 2026

—

Time to first token

130 ms

seed-bootstrap · Aug 1, 2026

—

Output speed

160 tok/s

seed-bootstrap · Aug 1, 2026

—

Input price

$0.15/1M

openrouter · Aug 17, 2026

$0.1/1M

openrouter · Aug 17, 2026

+$0.05/1M

Output price

$0.6/1M

openrouter · Aug 17, 2026

$0.2/1M

openrouter · Aug 17, 2026

+$0.4/1M

Context window

128k

openrouter · Aug 17, 2026

66k

openrouter · Aug 17, 2026

+62k

Recommended Workload Routing

Repo / coding agentsinsufficient data

Need SWE-bench on both sides.

High-volume chatReka Flash 3

Lower output list price ($0.2/1M).

Voice / low-latency UIinsufficient data

Need TTFT on both sides.

Long-document RAGGPT-4o mini

Larger window (128k).

Screenshots / visionGPT-4o mini

GPT-4o mini is the side marked multimodal in the catalog.

Target Workload	Recommended Pick	Evaluation Rationale
Repo / coding agents	insufficient data	Need SWE-bench on both sides.
High-volume chat	Reka Flash 3	Lower output list price ($0.2/1M).
Voice / low-latency UI	insufficient data	Need TTFT on both sides.
Long-document RAG	GPT-4o mini	Larger window (128k).
Screenshots / vision	GPT-4o mini	GPT-4o mini is the side marked multimodal in the catalog.

Frequently Asked Questions

Which is better overall, GPT-4o mini or Reka Flash 3?

We do not have preference Elo for both models, so we do not declare an overall winner. Compare the metrics that exist.

Which is better at coding, GPT-4o mini or Reka Flash 3?

SWE-bench is missing for at least one model, so we do not rank coding from a single number.

Which is cheaper to run in production?

Reka Flash 3 output tokens are $0.2/1M versus $0.6/1M. Input prices and retry rates still move the real bill.

Which is faster, GPT-4o mini or Reka Flash 3?

We do not have TTFT for both models.

Which has the larger context window?

GPT-4o mini accepts 128k tokens versus 66k.

Can I self-host either model?

Neither model is marked open-weights here. You are comparing hosted APIs.

Are these scores from CompareLLM’s own evals?

No. V1 aggregates public leaderboards (and optional first-party latency pings). Each cell names its source and date. Read /methodology.

What does preference Elo mean on this page?

Preference Elo is a crowd vote from LMArena / Arena. People see two hidden answers and pick the one they like more. The model that wins more often gets a higher Elo. That means people preferred it — not that it passed a school test. It is not SWE-bench, not accuracy, and not a number we invent. GPT-4o mini and Reka Flash 3 Elo cells are dated snapshots from the named source — we do not compute Arena ourselves.