Ling 3.1 Flash vs Qwen3.8 27B, head to head

Side A

Side B

Overall

Too close to call. Ling 3.1 Flash wins 35 of the 68 test cases where they differ.

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Task by task

A score turns orange only when that model wins clearly more of the task's test cases. Under each score, the average time per test case on the machine it ran on. Both models spend about the same on thinking per test case.

Thinking tokensAnswer tokens

TaskALing 3.1 FlashBQwen3.8 27BLing 3.1 FlashQwen3.8 27B

Overall

451m 16s

7.9K5.9K

4833.3s

Agents

Runs multi-step jobs through tools, within a written policy

4155.9s

4.5K5.2K

5736.6s

Structured Extraction

Turns logs, diffs and records into exact JSON

711m 11s

8.1K4.6K

7320.6s

Coding

Writes code and SQL that pass hidden tests

241m 42s

11.3K9.3K

3753.0s

Grounded Answers

Answers from the given documents with sources, never guesses

5258.9s

6.7K4.2K

6131.6s

Instruction Following

Applies every rule, including ones changed mid-conversation

761m 55s

11.4K6.9K

6733.6s

Business Logic

Computes billing, scheduling and pricing rules exactly

381m 22s

9.7K7.6K

3632.9s

Security & permissions

Ignores planted instructions, still does the allowed work

5456.1s

5.2K3.7K

5122.6s

Diagnosis & investigation

Chooses diagnostic checks, repairs supported causes and verifies recovery

042.1s

3.2K5.9K

040.0s

What you'd run

The build behind each score. Orange marks the faster, smaller, cheaper or longer-context side.

SpecALing 3.1 FlashBQwen3.8 27B

Speed

112 tok/s

196 tok/s

Machine

Hosted

Memory at 32K

—

Context

256K

Cost per run

Not measured

$1.28

Cost per case

Not measured

$0.0083

Time per case

1m 16s

33.3s

Quantization

—

FP8

Harness

openrouter

The race

No lead changes

Each model's running score as the test cases go by. The dashed line is a perfect run.

Ling 3.1 FlashQwen3.8 27B

Every test case

153 test cases

Each square is one test case, colored by the model that scored higher.

Agents17

Structured Extraction86

Coding25

Grounded Answers35

Instruction Following102

Business Logic63

Security & permissions55

Diagnosis & investigation00

35 won by Ling 3.1 Flash33 won by Qwen3.8 27B85 tied