ResearchLLM Verifications Leaderboard

Data as of · 78 models, 80 questions · reviewed by Suhas Bhairav · methodology

Head to head · tested 27 Oct 2026

Ling 3.1 Flash vs Phi 4: accuracy, speed and price

Similar accuracy; Phi 4 costs less per question.

inclusionAILing 3.1 Flash41.2% score · #54$0.00061 per question7 tok/sMicrosoftPhi 441.2% score · #54$0.00012 per question103 tok/s

Verdict

Built from the measurements below

  • Accuracy is too close to call: Ling 3.1 Flash scored 41.2% and Phi 4 41.2% on the same 80 questions, a gap within what chance alone could produce.
  • Phi 4 is 5.1× cheaper per question as billed ($0.00012 vs $0.00061), reasoning tokens included.
  • Phi 4 generates text 14× faster: 103 tokens per second against 7.
  • Phi 4 starts answering sooner: 0.5 s to the first token, against 1.1 s for Ling 3.1 Flash.
  • Ling 3.1 Flash accepts more context: 262k tokens against 16k.

Which should you choose?

Choose Ling 3.1 Flash for a 262k-token context window. Choose Phi 4 for the lower cost per correct answer ($0.00029 against $0.0015), faster streaming, a quicker first token, shorter outputs (about 699 tokens per question against 2,616) and open weights you can run yourself. The widest subject gap is in engineering: Phi 4 answered 6 of 15 correctly, Ling 3.1 Flash 1 of 15. With so few questions per subject, treat this as a lead to test on your own prompts, not a result.

Accuracy gap +0.0 points (z = 0.00). A winner is called only when z is at least 1.96, the usual 95% threshold. Speed, latency and price need a 10% margin.

Head to head

Same questions, same prompt, same API

MeasureLing 3.1 FlashPhi 4Edge
Verification scoreHigher is better41.2%41.2%Too close to call
Cost per questionLower is better$0.00061$0.00012Phi 4
Output speedHigher is better7103Phi 4
Time to first tokenLower is better1.1 s0.5 sPhi 4
End-to-end response timeLower is better81.3 s4.9 sPhi 4
Tokens per questionLower is better2,616699Phi 4
Context windowHigher is better262k16kLing 3.1 Flash

Side by side

Bars are scaled to the larger of the two values. The winner on each measure is marked in bold.

Every measure

Ling 3.1 Flash first, Phi 4 second

Verification scorehigher is better
Ling 3.1 Flash41.2%
Phi 441.2%
Cost per questionlower is better
Ling 3.1 Flash$0.00061
Phi 4$0.00012
Output speedhigher is better
Ling 3.1 Flash7
Phi 4103
Time to first tokenlower is better
Ling 3.1 Flash1.1 s
Phi 40.5 s
End-to-end response timelower is better
Ling 3.1 Flash81.3 s
Phi 44.9 s
Tokens per questionlower is better
Ling 3.1 Flash2,616
Phi 4699
Context windowhigher is better
Ling 3.1 Flash262k
Phi 416k

Score vs. cost per question

Both models in color, every other model in grey

Most attractive quadrant0255075100$0.00001$0.0001$0.001$0.01$0.10Cost per question (USD, log) →Verification score (%) →Qwen3.8 2.4T A95BCommand AReka Flash 3Gemma 4 26B A4BGemma 4 31BQwen3.5 397B A17BHermes 4 405BMuse WonderGrok 4.7o3gpt-oss-20bMinistral 3 3B 2512Nova Micro 1.0Phi 4Granite 4.2 8BHy3GLM 5.3 FlashSolar Pro 4Trinity Large ThinkingMiniMax M3Mistral Large 4Claude Opus 5.5GPT-6.1 SolGemini 4 ArgonGPT-5.4GPT-6 Lunagpt-oss-120bLlama 4 Maverick

Specifications and pricing

From OpenRouter's catalogue, plus the leaderboard's test dates

SpecificationLing 3.1 FlashPhi 4
CreatorinclusionAIMicrosoft
Released2 Oct 202610 Jan 2025
Weights—Open weights
ReasoningYesNo
Inputtexttext
Outputtexttext
Context window262k tokens16k tokens
Knowledge cutoff—30 Jun 2024
List price in / out per 1M$0.075 / $0.225$0.07 / $0.14
Blended price per 1M (3:1)$0.11$0.09
Cheapest hostDeepInfra · $0.075 / $0.225DeepInfra · $0.056 / $0.112
Hosts on OpenRouter21
Last tested27 Oct 202626 Oct 2026

Compare any two models →

Ling 3.1 Flash vs Phi 4: frequently asked questions

Is Ling 3.1 Flash better than Phi 4?
On accuracy they are statistically tied: Ling 3.1 Flash scored 41.2% and Phi 4 41.2% on the same 80 questions from open datasets. Similar accuracy; Phi 4 costs less per question.
Which is cheaper, Ling 3.1 Flash or Phi 4?
Phi 4 is cheaper: $0.00012 per question as billed, against $0.00061. List prices: Ling 3.1 Flash $0.075 in / $0.225 out, Phi 4 $0.07 in / $0.14 out per million tokens.
Which is faster, Ling 3.1 Flash or Phi 4?
Phi 4 is faster at 103 output tokens per second, against 7. Time to first token: 1.1 s for Ling 3.1 Flash, 0.5 s for Phi 4.
Which has the larger context window, Ling 3.1 Flash or Phi 4?
Ling 3.1 Flash, with 262k tokens against 16k.