Model comparison

GPT-6.1 Sol vs Phi-4 Mini

Phi-4 Mini has enough public results to be ranked (#280); GPT-6.1 Sol does not yet, so treat this comparison as directional.

Last verified October 10, 2026. 0 shared benchmarks.

GPT-6.1 Sol OpenAI

42.1

Unranked Sparse

Phi-4 Mini

Microsoft

30.4

Rank #280 Reported

Summary

The widest gap is in coding, where GPT-6.1 Sol leads 51.4 to 27.6.
Phi-4 Mini is cheaper at $0.075 / $0.30 per million input/output tokens, against $2 / $10 for GPT-6.1 Sol.
GPT-6.1 Sol accepts more context: 1.05M tokens versus 128K.
Phi-4 Mini has downloadable open weights; the other is API-only.

Side by side

GPT-6.1 Sol and Phi-4 Mini specifications
	GPT-6.1 Sol	Phi-4 Mini
Provider	OpenAI	Microsoft
Noometry Index	42.1	30.4
Released	2026-09-29	2024-12-11
Weights	Proprietary	Open
Context window	1.05M	128K
Max output	128K	4K
Input $ / M tokens	$2	$0.075
Output $ / M tokens	$10	$0.30
Results tracked	2	3

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Category by category

Coding GPT-6.1 Sol leads

GPT-6.1 Sol: 51.4, Phi-4 Mini: 27.6 (#312)

Coding benchmarks
Benchmark	GPT-6.1 Sol	Phi-4 Mini
DeepSWE	75.2%	—
SciCode	—	10.8%

Agentic & Tool Use Not comparable

GPT-6.1 Sol: 34.3, Phi-4 Mini: —

Agentic & Tool Use benchmarks
Benchmark	GPT-6.1 Sol	Phi-4 Mini
GDP.pdf	32%	—

Reasoning Not comparable

GPT-6.1 Sol: —, Phi-4 Mini: 21.7 (#190)

Reasoning benchmarks
Benchmark	GPT-6.1 Sol	Phi-4 Mini
CritPt	—	0%

Knowledge Not comparable

GPT-6.1 Sol: —, Phi-4 Mini: 24.8 (#261)

Knowledge benchmarks
Benchmark	GPT-6.1 Sol	Phi-4 Mini
Vectara Hallucination Rate	—	23.5%

Frequently asked questions

Is GPT-6.1 Sol better than Phi-4 Mini?

Phi-4 Mini has enough public results to be ranked (#280); GPT-6.1 Sol does not yet, so treat this comparison as directional.

Which is cheaper, GPT-6.1 Sol or Phi-4 Mini?

Phi-4 Mini is cheaper. It lists at $0.075 per million input tokens and $0.30 per million output tokens; GPT-6.1 Sol lists at $2 and $10.

Is GPT-6.1 Sol or Phi-4 Mini better for coding?

GPT-6.1 Sol scores higher on coding benchmarks: 51.4 versus 27.6 in the Noometry coding category.

Which has the bigger context window?

GPT-6.1 Sol does, with 1.05M tokens against 128K.

How many benchmarks do GPT-6.1 Sol and Phi-4 Mini share?

0 benchmarks have published results for both models. GPT-6.1 Sol has 2 scored results on Noometry and Phi-4 Mini has 3.