vs
1:0
overall capability wins (2 ties across 3 scored). Phi-3.5-mini leads overall.
- Speed0:2
- Specs1:0
Verdict
Phi-3.5-mini offers larger context (131K vs 128K).
Cost for 1M in + 250K out
Illustrative chat workload at primary-provider list prices.
- Phi-3.5-mini
- $0.26
- Phi-3 Mini 3.8B
- $0.26
Price per 1M tokens
Full comparison
Organization
Microsoft
Microsoft
Family
Phi
Phi
License
MIT
MIT
Open weights
Yes
Yes
Release
Aug 21, 2024
Apr 23, 2024
Knowledge cutoff
-
-
API / provider
Azure AI Foundry
Azure AI Foundry
Modalities
text → text
text → text
Specs
Context window
131K
128K
Max output
4K
4K
Parameters
3.8B
3.8B
Pricing
Input $/1M
$0.13
$0.13
Output $/1M
$0.52
$0.52
Blended $/1M (3∶1)
$0.23
$0.23
Speed
tok/s
130
140
TTFT (s)
0.2
0.18
Reasoning
MMLU-Pro
—
43.5
GPQA Diamond
—
31.9
Humanity's Last Exam
—
5.0
AIME 2025
—
0.3
MATH-500
—
45.7
Humanity's Last Exam (with tools)
—
—
AA-Omniscience Accuracy
—
—
AA-LCR v1.1
—
—
CritPt
—
—
MMMU-Pro
—
—
IFBench
—
23.9
Chartography
—
—
Chartography (With Tools)
—
—
Coding
SWE-bench Verified
—
—
SWE-bench Pro
—
—
SWE-bench Multilingual
—
—
LiveCodeBench
—
11.6
Terminal-Bench 2.1
—
—
Aider Polyglot
—
—
Terminal-Bench 3
—
—
BigCodeBench
—
29.6
SciCode
—
9.0
CursorBench
—
—
SWE-Rebench
—
—
NL2Repo-Bench
—
—
DeepSWE
—
—
WebDev Arena
—
—
Terminal-Bench 4.0
—
—
CursorBench 4.0
—
—
FrontierCode v1.1 (Main)
—
—
Arena
LMArena Elo
—
1,128
| Metric | Phi-3.5-mini | Phi-3 Mini 3.8B | Delta |
|---|---|---|---|
| Identity | |||
| Organization | Microsoft | Microsoft | — |
| Family | Phi | Phi | — |
| License | MIT | MIT | — |
| Open weights | Yes | Yes | — |
| Release | Aug 21, 2024 | Apr 23, 2024 | — |
| Knowledge cutoff | - | - | — |
| API / provider | Azure AI Foundry | Azure AI Foundry | — |
| Modalities | text → text | text → text | — |
| Specs | |||
| Context window | 131K | 128K | A +3K |
| Max output | 4K | 4K | tie |
| Parameters | 3.8B | 3.8B | tie |
| Pricing | |||
| Input $/1M | $0.13 | $0.13 | tie |
| Output $/1M | $0.52 | $0.52 | tie |
| Blended $/1M (3∶1) | $0.23 | $0.23 | tie |
| Speed | |||
| tok/s | 130 | 140 | B +10 |
| TTFT (s) | 0.2 | 0.18 | B +0.02 |
| Reasoning | |||
| MMLU-Pro | — | 43.5 | — |
| GPQA Diamond | — | 31.9 | — |
| Humanity's Last Exam | — | 5.0 | — |
| AIME 2025 | — | 0.3 | — |
| MATH-500 | — | 45.7 | — |
| Humanity's Last Exam (with tools) | — | — | — |
| AA-Omniscience Accuracy | — | — | — |
| AA-LCR v1.1 | — | — | — |
| CritPt | — | — | — |
| MMMU-Pro | — | — | — |
| IFBench | — | 23.9 | — |
| Chartography | — | — | — |
| Chartography (With Tools) | — | — | — |
| Coding | |||
| SWE-bench Verified | — | — | — |
| SWE-bench Pro | — | — | — |
| SWE-bench Multilingual | — | — | — |
| LiveCodeBench | — | 11.6 | — |
| Terminal-Bench 2.1 | — | — | — |
| Aider Polyglot | — | — | — |
| Terminal-Bench 3 | — | — | — |
| BigCodeBench | — | 29.6 | — |
| SciCode | — | 9.0 | — |
| CursorBench | — | — | — |
| SWE-Rebench | — | — | — |
| NL2Repo-Bench | — | — | — |
| DeepSWE | — | — | — |
| WebDev Arena | — | — | — |
| Terminal-Bench 4.0 | — | — | — |
| CursorBench 4.0 | — | — | — |
| FrontierCode v1.1 (Main) | — | — | — |
| Arena | |||
| LMArena Elo | — | 1,128 | — |
Phi-3.5-mini
- Context
- 131K / 4K out
- Parameters
- 3.8B
- Price
- $0.13 / $0.52
- Speed
- 130 tok/s · 0.2s TTFT
- Modalities
- text → text
- License
- MIT
Prior Phi SLM generation — still common on Azure for low-cost classification before the Phi-4 refresh.
Phi-3 Mini 3.8B
- Context
- 128K / 4K out
- Parameters
- 3.8B
- Price
- $0.13 / $0.52
- Speed
- 140 tok/s · 0.18s TTFT
- Modalities
- text → text
- License
- MIT
Original Phi-3 Mini instruct — compact Azure / edge SLM that popularized Microsoft's open Phi line.
Benchmark charts
Winner bars are emphasized. Per-benchmark deltas sit above each chart.
These two models have no overlapping published benchmarks in our dataset. Compare specs and pricing instead.