AI model comparison
Reka Flash 3 vs GPT-4o-mini
Pricing, context window, benchmarks, and features compared side by side. Or skip the guesswork and send one prompt to both.
rekaai
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.
- Input / 1M
- $0.10
- Output / 1M
- $0.20
- Context
- 66K
OpenAI
GPT-4o-mini
GPT-4o mini is OpenAI's newest model after [GPT-4 Omni](/models/openai/gpt-4o), supporting both text and image inputs with text outputs.
- Input / 1M
- $0.15
- Output / 1M
- $0.60
- Context
- 128K
At a glance
Quick verdict
How the two models stack up on the things people ask about most.
Lower price
Reka Flash 3
2x cheaper for a typical chat
Higher intelligence score
GPT-4o-mini
6.7 vs 6.4 on Artificial Analysis
Larger context window
GPT-4o-mini
128K vs 66K tokens
Newer release
Reka Flash 3
Released March 12, 2025
Benchmarks
Benchmark scores
Independent scores from Artificial Analysis. Higher is better.
Intelligence index
Reka Flash 36.4GPT-4o-mini6.7Coding index
Reka Flash 3Not availableGPT-4o-mini11.4Agentic index
Reka Flash 3Not availableGPT-4o-miniNot availablePricing
Reka Flash 3 vs GPT-4o-mini API pricing
Per-token API rates. Cheaper option highlighted.
| Metric | Reka Flash 3 | GPT-4o-mini |
|---|---|---|
| Input tokensPer 1M tokens | $0.10 | $0.15 |
| Output tokensPer 1M tokens | $0.20 | $0.60 |
| Cached input (read)Per 1M tokens | Not available | $0.08 |
| Cache writePer 1M tokens | Not available | Not available |
What it costs in practice
Estimated cost per 1,000 requests at standard rates. Coding and long-document figures also show the cost when the input is already cached.
Chat message
2K in, 500 out
Reka Flash 3$0.30GPT-4o-mini$0.60Coding task
30K in, 4K out
Reka Flash 3$3.80GPT-4o-mini$6.90$4.65 cachedLong document summary
150K in, 2K out
Reka Flash 3$15.40GPT-4o-mini$23.70$12.45 cachedSpecs
Context window and capabilities
How much each model can read, how much it can write, and what it accepts as input.
| Metric | Reka Flash 3 | GPT-4o-mini |
|---|---|---|
| Context window | 66K tokens | 128K tokens |
| Max output | 59K tokens | 16K tokens |
| Input types | Text | File, Image, Text |
| Output types | Text | Text |
| Reasoning effort levels | Not available | Not available |
| Default reasoning effort | Not available | Not available |
| Release date | March 12, 2025 | July 18, 2024 |
Features
Supported features
API features available for each model.
| Metric | Reka Flash 3 | GPT-4o-mini |
|---|---|---|
| Tool calling | Not supported | Supported |
| Structured outputs | Supported | Supported |
| JSON mode | Not supported | Supported |
| Reasoning | Supported | Not supported |
| Temperature | Supported | Supported |
| Stop sequences | Supported | Supported |
| Deterministic seed | Supported | Supported |
| Verbosity control | Not supported | Not supported |
Keep exploring
More on these models
Other head-to-heads, the full model page, and the alternatives list for each model.
GPT-4o-miniView full model details- GPT-4o-mini vs GPT-6 Luna Pro
- GPT-4o-mini vs GPT-5 Nano
- GPT-4o-mini vs GPT-4.1 Mini
- GPT-4o-mini vs Gemma 3 27B
- GPT-4o-mini vs Llama 3.3 70B Instruct
- GPT-4o-mini vs GPT-4.1 Nano
- GPT-4o-mini vs Llama 4 Maverick
- GPT-4o-mini vs Qwen3 VL 30B A3B Instruct
- GPT-4o-mini vs Qwen3 VL 8B Instruct
- GPT-4o-mini vs Sonar
- GPT-4o-mini vs Nova Lite 1.0
- GPT-4o-mini vs Qwen3 30B A3B
- GPT-4o-mini vs Hermes 3 70B Instruct
- GPT-4o-mini vs Llama 3.1 70B Instruct
- GPT-4o-mini vs Llama 3.2 3B Instruct
- GPT-4o-mini vs Hermes 3 405B Instruct
- GPT-4o-mini vs Solar Pro 3
- GPT-4o-mini vs GPT-3.5 Turbo
- GPT-4o-mini vs GLM 4.5V
- GPT-4o-mini vs Nova Pro 1.0
- GPT-4o-mini vs Qwen2.5 Coder 32B Instruct
- GPT-4o-mini vs Saba
Our take
Reka Flash 3 is 2x cheaper for a typical chat. GPT-4o-mini scores higher on the Artificial Analysis Intelligence Index (6.7 vs 6.4). GPT-4o-mini has the larger context window (128K vs 66K tokens). The right pick depends on your workload, so the quickest way to settle it is to send the same prompt to both and compare.
FAQ
Frequently asked questions
Is Reka Flash 3 or GPT-4o-mini cheaper?
Reka Flash 3 is cheaper for a typical chat (2K input tokens and 500 output tokens). Reka Flash 3 costs $0.10 per 1M input tokens and $0.20 per 1M output tokens, while GPT-4o-mini costs $0.15 per 1M input tokens and $0.60 per 1M output tokens.
Which has a bigger context window, Reka Flash 3 or GPT-4o-mini?
GPT-4o-mini supports up to 128K tokens of context, compared with 66K for Reka Flash 3.
Is Reka Flash 3 smarter than GPT-4o-mini?
On the Artificial Analysis Intelligence Index, Reka Flash 3 scores 6.4 and GPT-4o-mini scores 6.7, putting GPT-4o-mini ahead. Benchmarks don't capture everything, so the best test is running your own prompts through both.
Can I use Reka Flash 3 and GPT-4o-mini at the same time?
Yes. Shortcut Chat sends one prompt to multiple models at once, so you can see Reka Flash 3 and GPT-4o-mini answer side by side and keep the better response.
Why choose? Ask both.
Send one prompt to Reka Flash 3 and GPT-4o-mini at the same time. Compare the answers side by side and keep the best one.