Model Comparison

Reka Flash 3
vs. Solar Pro 2 (Reasoning)

Comparing 2 AI models · 12 benchmarks · Reka AI, Upstage

Recommended Pick

Upstage logo Solar Pro 2 (Reasoning) 19 metric wins

Strongest on: Input price, Output price, TTFT

Lowest Price

Upstage logo

Solar Pro 2 (Reasoning)

$0.00/1M input price

Best Reasoning

Upstage logo

Solar Pro 2 (Reasoning)

54.1 reasoning score

Blends available reasoning benchmarks

Best for Coding

Upstage logo

Solar Pro 2 (Reasoning)

12.1 coding index

Composite Indices

Higher is better; speed and price are normalized

Standard Benchmarks

Only benchmarks with data are shown

Differences That Matter

Price gap

Solar Pro 2 (Reasoning) is ∞x cheaper on input tokens than Reka Flash 3.

Reasoning gap

Solar Pro 2 (Reasoning) leads Reka Flash 3 by 14.8 points on reasoning.

Coding gap

Solar Pro 2 (Reasoning) leads Reka Flash 3 by 3.2 points on coding.

Top-pick rationale

Solar Pro 2 (Reasoning) wins 19 measurable categories, including Input price, Output price, TTFT, Latency.

Live compare

Response Face-Off

Run one prompt through the selected models and compare response quality with live speed and cost context.

Reka AI logo

Reka Flash 3

Reka AI

Waiting

TTFT

Time

tok/s

Tokens

Cost

Waiting
Upstage logo

Solar Pro 2 (Reasoning)

Upstage

Waiting

TTFT

Time

tok/s

Tokens

Cost

Waiting

Which answer was more useful?

AI Chat

Chat with 80+ models

Inference API

EU-hosted inference

Full Comparison

Metric
Reka AI logo Reka Flash 3
Reka AI
Top Pick
Upstage logo Solar Pro 2 (Reasoning)
Upstage
Pricing per 1M tokens
Input Cost $0.20/1M$0.00/1M
Output Cost $0.80/1M$0.00/1M
Blended (3:1) $0.35/1M
Specifications
Organization Reka AIUpstage
Release Date Mar 10, 2025Jul 9, 2025
Performance & Speed
Throughput 90.3 tok/s
TTFT 2148ms
Latency 24298ms
Composite Indices
Value Score 100.0
Reasoning Score 39.354.1
Intelligence 9.514.9
Coding 8.912.1
Math 33.761.3
Standard Benchmarks
GPQA 52.9%68.7%
MMLU Pro 66.9%80.5%
HLE 5.1%7.0%
LiveCodeBench 43.5%61.6%
MATH 500 89.3%96.7%
AIME 2025 33.7%61.3%
AIME (Original) 51.0%69.0%
SciCode 26.7%30.2%
LCR 0.0%0.0%
IFBench 30.4%37.1%
TAU-bench v2 0.0%28.1%
TerminalBench Hard 0.0%3.0%

Key Takeaways

Solar Pro 2 (Reasoning) offers the best value at $0.00/1M, making it ideal for high-volume applications and cost-conscious projects.

Solar Pro 2 (Reasoning) has the strongest reasoning profile with a 54.1 reasoning score, combining the available reasoning-heavy benchmarks.

Solar Pro 2 (Reasoning) reaches a 12.1 coding index, making it the top choice for software development and code generation tasks.

All models support context windows of ∞+ tokens, suitable for processing lengthy documents and maintaining extended conversations.

When to Choose Each Model

Reka AI logo

Reka Flash 3

  • General-purpose AI
  • Versatile applications
Upstage logo

Solar Pro 2 (Reasoning)

  • Cost-sensitive applications
  • High-volume processing
  • Complex reasoning tasks
  • Research & analysis
  • Code generation
  • Software development