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InclusionAI

Ling-3.1-flash

  • Released
  • Open weights
  • MIT
Intelligence Index

Reasoning setting

41.1#19 of 83measured models
Measured · Artificial Analysis v4.3.2
API price from
≈ $0.02 in / ≈ $0.06 out / 1M tokOpenRouter · Novita · promotional
Context window
1M tok

Performance profile

CodingRank #22 of 94
54.1%
SciCode
Cost efficiencyRank #43 of 67
41.1pts / $
Intelligence ÷ eval cost

Capabilities

Context window

Modalities

Measured setting

Integration

Reasoning trade-offs

Source (opens in a new tab)
Intelligence Index v4.3.2
Ling-3.1-flash
Cost per task (USD)
Ling-3.1-flashReasoning
Intelligence Index
41.1
Cost / task
$0.9996
Evaluation time
6.6m

Pricing & access

API route
API
Tier & contextStandard · Promotional

USD per 1M tokens

Input
$0.01875
Output
$0.05625
Cached input
$0.00375

Run locally

Benchmarks

Full leaderboardSource (opens in a new tab)

Humanity’s Last Exam

Frontier reasoning

Ling-3.1-flash · Reasoning#26 of 126

  1. 1Claude Opus 5.5Max61.4%
  2. 2Claude Fable 5.1Max59.1%
  3. 3Gemini 4 ArgonHigh57.1%
  4. 23GLM-5.3Max42.3%
  5. 24DeepSeek-V4-Pro-0813Max41.0%
  6. 25GLM-5.3-FlashMax39.9%
  7. 26Ling-3.1-flashReasoning39.4%
  8. 27DeepSeek-V4.1-FlashMax39.2%
  9. 28MiniMax-M3Reasoning39.0%
  10. 29GPT-6 LunaMax38.5%

Peers use their best measured result on this benchmark.

Alternatives

Each model at its highest-scoring measured setting · Intelligence Index v4.3.2 and its evaluation cost per task.