Model Comparison

Phi-3 Mini Instruct 3.8B
vs. Solar Pro 2 (Preview) (Reasoning)

Comparing 2 AI models · 12 benchmarks · Microsoft, Upstage

Recommended Pick

Upstage logoSolar Pro 2 (Preview) (Reasoning)9 metric wins

Strongest on: Reasoning, Intelligence, GPQA

Lowest Price

Microsoft logo

Phi-3 Mini Instruct 3.8B

$0.00/1M input price

Best Reasoning

Upstage logo

Solar Pro 2 (Preview) (Reasoning)

46.5 reasoning score

Blends available reasoning benchmarks

Composite Indices

Higher is better; speed and price are normalized

Standard Benchmarks

Only benchmarks with data are shown

Differences That Matter

Reasoning gap

Solar Pro 2 (Preview) (Reasoning) leads Phi-3 Mini Instruct 3.8B by 33.4 points on reasoning.

Top-pick rationale

Solar Pro 2 (Preview) (Reasoning) wins 9 measurable categories, including Reasoning, Intelligence, GPQA, MMLU Pro.

Live compare

Response Face-Off

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

Microsoft logo

Phi-3 Mini Instruct 3.8B

Microsoft

Waiting

TTFT

Time

tok/s

Tokens

Cost

Waiting
Upstage logo

Solar Pro 2 (Preview) (Reasoning)

Upstage

Waiting

TTFT

Time

tok/s

Tokens

Cost

Waiting

Which answer was more useful?

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Servers in Germany & Finland. Designed to meet strict GDPR and ISO 27001 compliance requirements.

Full Comparison

Metric
Microsoft logoPhi-3 Mini Instruct 3.8B
Microsoft
Top Pick
Upstage logoSolar Pro 2 (Preview) (Reasoning)
Upstage
Pricing per 1M tokens
Input Cost$0.00/1M$0.00/1M
Output Cost$0.00/1M$0.00/1M
Specifications
OrganizationMicrosoftUpstage
Release DateApr 23, 2024May 20, 2025
Performance & Speed
Throughput
TTFT
Latency
Composite Indices
Reasoning Score13.046.5
Intelligence4.612.5
Math0.3
Standard Benchmarks
GPQA31.9%57.8%
MMLU Pro43.5%76.8%
HLE4.4%5.7%
LiveCodeBench11.6%46.2%
MATH 50045.7%90.0%
AIME 20250.3%
AIME (Original)4.0%66.3%
SciCode9.0%16.4%
LCR2.0%
IFBench23.9%
TAU-bench v20.0%
TerminalBench Hard0.0%

Key Takeaways

Phi-3 Mini Instruct 3.8B offers the best value at $0.00/1M,making it ideal for high-volume applications and cost-conscious projects.

Solar Pro 2 (Preview) (Reasoning) has the strongest reasoning profile with a 46.5 reasoning score,combining the available reasoning-heavy benchmarks.

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

When to Choose Each Model

Microsoft logo

Phi-3 Mini Instruct 3.8B

  • Cost-sensitive applications
  • High-volume processing
Upstage logo

Solar Pro 2 (Preview) (Reasoning)

  • Complex reasoning tasks
  • Research & analysis