Compare / head-to-head

Phi-4vsSeed-OSS-36B-Instruct

Seed-OSS-36B-Instruct leads 6 of 6 shared benchmarks. Seed-OSS-36B-Instruct has the larger context window (512K tokens).

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

Shared benchmarks
0 – 6
Seed-OSS-36B-Instruct leads
Cheaper per token
—
list price, input + output
Larger context
Seed-OSS-36B-Instruct
512K tokens
Providers
2 providers
Microsoft · ByteDance Seed
Phi-4
Microsoft · released 2024-12-12
text
Context
16K
Max out
16K
Input /1M
—
Output /1M
—
Cached /1M
—
Scores
17 · 7 core
Seed-OSS-36B-Instruct
ByteDance Seed · released 2025-08-20
text
Context
512K
Max out
—
Input /1M
—
Output /1M
—
Cached /1M
—
Scores
18 · 12 core
Quality

Benchmark matrix

BenchmarkPhi-4Seed-OSS-36B-InstructΔEdge
Reported by both · 6
GPQA Diamond56.1% ↗71.5% ↗epoch run-15.4 ptSeed-OSS-36B-Instruct
MMLU84.8% ↗87.4% ↗-2.6 ptSeed-OSS-36B-Instruct
MMLU-Pro70.4% ↗82.7% ↗-12.3 ptSeed-OSS-36B-Instruct
Chess Puzzles (Epoch AI run)1% ↗epoch run13% ↗epoch run-12 ptSeed-OSS-36B-Instruct
IFEval63% ↗85.8% ↗-22.8 ptSeed-OSS-36B-Instruct
OTIS Mock AIME 2024-2025 (Epoch AI run)13.8% ↗epoch run67.5% ↗epoch run-53.7 ptSeed-OSS-36B-Instruct
Only Phi-4 reports · 7
HumanEval82.6% ↗not reported——
LMArena Elo1216.6 ↗not reported——
ArenaHard75.4% ↗not reported——
BALROG (BALROG)11.6% ↗not reported——
HumanEval+82.8% ↗not reported——
MATH80.4% ↗not reported——
MATH Level 5 (Epoch AI run)64.9% ↗epoch runnot reported——
Only Seed-OSS-36B-Instruct reports · 12
AIME24not reported91.7% ↗——
AIME25not reported84.7% ↗——
BeyondAIMEnot reported65% ↗——
GPQA-Dnot reported71.4% ↗——
HLEnot reported10.1% ↗——
LiveCodeBench v6 (02/2025-05/2025)not reported67.4% ↗——
MMMLUnot reported78.4% ↗——
Multi-SWE-Benchnot reported17% ↗——
RULER (128K)not reported94.6% ↗——
SuperGPQAnot reported55.7% ↗——
SWE-Bench Verified (OpenHands)not reported56% ↗——
TAU1-Retailnot reported70.4% ↗——
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 Phi-4 minus Seed-OSS-36B-Instruct 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-4Seed-OSS-36B-InstructEdge
Context window16K tokens512K tokensSeed-OSS-36B-Instruct
Max output16K tokens——
Input price / 1M———
Output price / 1M———
Cached input / 1M———
Input + output / 1M
Lower is cheaper. List prices; batch, tool and regional fees excluded.
———
ModalitiestexttextTie
Released2024-12-122025-08-20—
Cited benchmark scores1718—
Reliability

Provider status

All providers →
Built by Respan
Which one wins on your data?

Public benchmarks are a starting point. Run Phi-4 and Seed-OSS-36B-Instruct on your own prompts with Respan evals, or route to either through one gateway key with automatic failover.