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Compare / head-to-head

GPT-4.1 nanovsPhi-4

Phi-4 leads 2 of 3 shared benchmarks. GPT-4.1 nano has the larger context window (1.0M tokens).

Benchmarks from cited public sources; pricing from official pages; status from official provider feeds.

Shared benchmarks
1 – 2
Phi-4 leads
Cheaper per token
list price, input + output
Larger context
GPT-4.1 nano
1.0M tokens
Provider uptime (30d)
94.2446% · —
OpenAI · Microsoft
GPT-4.1 nano
OpenAI · released 2025-04-14
textvision
Context
1.0M
Max out
33K
Input /1M
$0.1
Output /1M
$0.4
Cached /1M
$0.025
Scores
7 · 5 core
Phi-4
Microsoft · released 2024-12-12
text
Context
16K
Max out
16K
Input /1M
Output /1M
Cached /1M
Scores
11 · 7 core
Quality

Benchmark matrix

BenchmarkGPT-4.1 nanoPhi-4ΔEdge
Reported by both · 3
GPQA Diamond50.3% 56.1% -5.8 ptPhi-4
MMLU80.1% 84.8% -4.7 ptPhi-4
OTIS Mock AIME 2024-2025 (Epoch AI run)28.9% epoch13.8% epoch+15.1 ptGPT-4.1 nano
Only GPT-4.1 nano reports · 3
Aider Polyglot9.8% not reported
AIME 202429.4% not reported
SimpleQA Verified6% epochnot reported
Only Phi-4 reports · 7
MMLU-Pronot reported70.4%
HumanEvalnot reported82.6%
LMArena Elonot reported1216.6
ArenaHardnot reported75.4%
HumanEval+not reported82.8%
IFEvalnot reported63%
MATHnot reported80.4%
Scores tagged "epoch" or "matharena" are independent runs, used only where the lab has not published its own; ⚠ marks rows MathArena flags as released after the competition. Higher is better on every row. Δ is GPT-4.1 nano minus Phi-4 in the benchmark's own unit. "Not reported" means the lab has not published that figure; it is not a zero. ↗ opens the source.
Specs & pricing

Side by side

SpecGPT-4.1 nanoPhi-4Edge
Context window1.0M tokens16K tokensGPT-4.1 nano
Max output33K tokens16K tokensGPT-4.1 nano
Input price / 1M$0.1
Output price / 1M$0.4
Cached input / 1M$0.025
Input + output / 1M
Lower is cheaper. List prices; batch, tool and regional fees excluded.
$0.5
Modalitiestext · visiontextGPT-4.1 nano
Released2025-04-142024-12-12
Cited benchmark scores711
Reliability

Provider status

All providers
More matchups

GPT-4.1 nano vs …

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Public benchmarks are a starting point. Run GPT-4.1 nano and Phi-4 on your own prompts with Respan evals, or route to either through one gateway key with automatic failover.