Flint vs Ling 3.1 Flash, head to head

Side A

Side B

Overall

Ling 3.1 Flash is clearly better. It wins 47 of the 51 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. Flint spends 1.7× as many thinking tokens per test case.

Thinking tokensAnswer tokens

TaskAFlintBLing 3.1 FlashFlintLing 3.1 Flash

Overall

211m 17s

10.9K7.9K

451m 16s

Agents

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

1447.7s

4.8K4.5K

4155.9s

Structured Extraction

Turns logs, diffs and records into exact JSON

291m 17s

10.9K8.1K

711m 11s

Coding

Writes code and SQL that pass hidden tests

141m 19s

12K11.3K

241m 42s

Grounded Answers

Answers from the given documents with sources, never guesses

2957.7s

8.7K6.7K

5258.9s

Instruction Following

Applies every rule, including ones changed mid-conversation

352m 28s

22.2K11.4K

761m 55s

Business Logic

Computes billing, scheduling and pricing rules exactly

101m 20s

11.7K9.7K

381m 22s

Security & permissions

Ignores planted instructions, still does the allowed work

3552.6s

7.1K5.2K

5456.1s

Diagnosis & investigation

Chooses diagnostic checks, repairs supported causes and verifies recovery

057.0s

7.3K3.2K

042.1s

What you'd run

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

SpecAFlintBLing 3.1 Flash

Speed

149 tok/s

112 tok/s

Machine

Hosted

Memory at 32K

—

Context

256K

Cost per run

Not measured

Cost per case

Not measured

Time per case

1m 17s

1m 16s

Quantization

BF16

—

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.

FlintLing 3.1 Flash

Every test case

153 test cases

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

Agents18

Structured Extraction110

Coding13

Grounded Answers05

Instruction Following010

Business Logic06

Security & permissions15

Diagnosis & investigation00

4 won by Flint47 won by Ling 3.1 Flash102 tied