AI Models · Open-Source vs Paid

Reka Flash 3 Open vs GPT Audio Paid

Reka Flash 3 vs GPT Audio compared — price per token, context window, multimodality, openness and which to choose. Can the open-source model replace the paid one? Full 2026 breakdown.

Prices & specs refreshed from live data · olud.ai

Open-model prices = cheapest provider via OpenRouter; official maker rates may be higher.

Reka Flash 3OpenRekaai
$0.1 /M input
$0.2 /M outputNo per-token fees if you self-host
TypeOpen-weight
Context window66K tokens
MultimodalNo
Self-hostYes
GPT AudioPaidOpenAI
$2.5 /M input
$10 /M outputManaged API (no infra to run)
TypeProprietary
Context window128K tokens
MultimodalNo
Self-hostNo
Choose Reka Flash 3 if you want to self-host, keep your data private and skip per-token fees — it's open-weight and runs on your own hardware. Choose GPT Audio if you want frontier capability through a managed API with zero infrastructure to run.

Reka Flash 3 vs GPT Audio specs

SpecReka Flash 3GPT AudioWinner
MakerRekaaiOpenAI
TypeOpen-weightProprietaryReka Flash 3
Context window66K tokens128K tokensGPT Audio
Input price$0.1/M · free self-host$2.5/MReka Flash 3
Output price$0.2/M · free self-host$10/MReka Flash 3
Vision / multimodalNoNo
Tool / function callingNoYesGPT Audio
Self-hostableYesNo (API only)Reka Flash 3
LicenseOpen weightsProprietaryReka Flash 3

Price gap & when to choose each

50×cheaper per output token

Reka Flash 3 is ~50× cheaper than GPT Audio on output tokens ($0.2 vs $10 per M tokens).

Choose Reka Flash 3 if…
  • You want to self-host or run on your cloud
  • You prioritize data privacy & control
  • You want the lowest operating costs
  • You are building open or reproducible AI
Choose GPT Audio if…
  • You want frontier performance through a managed API
  • You need the longer 128K context window
  • You value reliability & ecosystem
  • You don't want to manage infrastructure

Feature comparison

CapabilityReka Flash 3GPT Audio
Open weights (downloadable)
Self-hostable
Runs fully offline
Vision / multimodal
Tool / function calling
1M+ context window

Benchmarks: Reka Flash 3 vs GPT Audio

Independent benchmark scores measured by Artificial Analysis. Higher is better (except latency).

Reka Flash 3
GPT Audio
Intelligence index
5.6
Math index
33.7
GPQA
52.9%
MMLU-Pro
66.9%
Humanity's Last Exam
4.4%
Long Context Reasoning
0%
LiveCodeBench
43.5%
MATH-500
89.3%
AIME
51%
AIME 2025
33.7%
IFBench
30.4%
τ²-Bench
0%
Terminal-Bench Hard
0%
Speed
85.9 tok/s
Latency
0.88s
Intelligence per $
16

Benchmark data by Artificial Analysis.

How Reka Flash 3 and GPT Audio score

🏆 Best value & openness: Reka Flash 3 (4.0 vs 2.6 / 5)
CriterionReka Flash 3GPT Audio
Cost-efficiency5.03.5
Context window3.03.5
Openness5.01.5
Self-hosting5.01.0
Multimodality2.03.5

Scores come from live data — output price (cost), context length, open vs closed weights (openness & self-hosting) and vision/tool support (multimodality). Raw task quality isn't scored here; it depends on your benchmark — see the verdict.

What each model is

Reka Flash 3 Open

Rekaai · Open-weight

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...

GPT Audio Paid

OpenAI · Proprietary

The gpt-audio model is OpenAI's first generally available audio model. The new snapshot features an upgraded decoder for more natural sounding voices and maintains better voice consistency. Audio is priced...

Other models in these families

These variants are tracked but not compared here — one page per family keeps the comparison readable.

Other variants tracked
Reka Edge

Frequently asked questions

Is Reka Flash 3 as good as GPT Audio?

Reka Flash 3 is open-weight and competitive on many tasks, but GPT Audio may still lead on the hardest reasoning and agentic work. The gap keeps narrowing — benchmark both on your actual use case before deciding.

Can I run Reka Flash 3 locally?

Yes. Reka Flash 3 has open weights, so you can self-host it on your own GPUs or run it via a low-cost API. GPT Audio is API-only and cannot be self-hosted.

How much cheaper is Reka Flash 3?

Reka Flash 3 costs $0.2/M output vs $10/M for GPT Audio — roughly 50x cheaper via API, and free if you self-host.

Reka Flash 3 vs GPT Audio — which should I pick in 2026?

Choose Reka Flash 3 if you want to self-host, keep your data private and skip per-token fees — it's open-weight and runs on your own hardware. Choose GPT Audio if you want frontier capability through a managed API with zero infrastructure to run.

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