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Compare / head-to-head

Phi-4vsSolar Pro 4

Solar Pro 4 leads 1 of 1 shared benchmark. Solar Pro 4 has the larger context window (512K tokens).

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

Shared benchmarks
0 – 1
Solar Pro 4 leads
Cheaper per token
list price, input + output
Larger context
Solar Pro 4
512K tokens
Provider uptime (30d)
— · —
Microsoft · Upstage
Phi-4
Microsoft · released 2024-12-12
text
Context
16K
Max out
16K
Input /1M
Output /1M
Cached /1M
Scores
11 · 7 core
Solar Pro 4
Upstage · released 2026-08-20
text
Context
512K
Max out
Input /1M
$0.3
Output /1M
$1.2
Cached /1M
$0.06
Scores
2 · 1 core
Quality

Benchmark matrix

BenchmarkPhi-4Solar Pro 4ΔEdge
Reported by both · 1
LMArena Elo1216.6 1377.3 -160.7Solar Pro 4
Only Phi-4 reports · 9
GPQA Diamond56.1% not reported
MMLU84.8% not reported
MMLU-Pro70.4% not reported
HumanEval82.6% not reported
ArenaHard75.4% not reported
HumanEval+82.8% not reported
IFEval63% not reported
MATH80.4% not reported
OTIS Mock AIME 2024-2025 (Epoch AI run)13.8% epochnot reported
Only Solar Pro 4 reports · 1
Artificial Analysis Intelligence Indexnot reported42
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 Phi-4 minus Solar Pro 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

SpecPhi-4Solar Pro 4Edge
Context window16K tokens512K tokensSolar Pro 4
Max output16K tokens
Input price / 1M$0.3
Output price / 1M$1.2
Cached input / 1M$0.06
Input + output / 1M
Lower is cheaper. List prices; batch, tool and regional fees excluded.
$1.5
ModalitiestexttextTie
Released2024-12-122026-08-20
Cited benchmark scores112
Reliability

Provider status

All providers
More matchups

Solar Pro 4 vs …

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Which one wins on your data?

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