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Meta · via openrouter · published window from October 5, 2026

meta-llama/llama-4-maverick: stability, speed and price

site endpoint id meta-llama--llama-4-maverick

Historical measurements. No successful scored check in the past 24 hours. Scores, latency and cost below describe the 24-hour window ending at the last successful check, not current performance. Current rankings exclude this endpoint.

Last successful scored check:

Core pass rate—
66.7%
historical: latest measured day
Speed—
2.4s
historical median per canary call · p95 3.9s
Cost—
$0.003
historical observed mean per scored run · probe mix differs by endpoint
Behaviour fingerprint52 runs
No change
1,453 responses · last adj. p 0.56 · Oct 13 3:25 AM UTC

Summary

meta-llama/llama-4-maverick has no successful scored check in the past 24 hours. The last measured day ended at 2026-10-13T01:55:01.284Z; 66.7% of core checks passed. These historical measurements are excluded from current rankings.

During that historical measurement window, median canary latency was 2.4s (p95 3.9s) and the observed mean cost per scored run was $0.003. This does not describe the endpoint’s present performance.

Raven Alpha has 1,453 fingerprint responses over 52 runs in this endpoint’s selected series; the last recorded state is “no change” at 2026-10-13T03:25:02.968Z with an adjusted p of 0.56.

No incidents on record.

Written from the numbers on this page; every figure is in results.json.

Measurement record

Provider
Meta
Route
openrouter
Model requested
meta-llama/llama-4-maverick
Model id returned
meta-llama/llama-4-maverick
Scored calls in window
536
Fingerprint responses
1,453
Core score change
-11.4 pts across the published window
Status
Historical · no recent check
Suite
hard-v2 + starter-v2 · methodology v0.2

Capabilities over time

-5%5%15%25%35%45%55%65%75%85%95%Oct 5Oct 6Oct 10Oct 12Oct 13

Historical measurement window by capability

Structured JSON100.0%

Schema-compliance regressions

Instruction following100.0%

Exact-format instruction drift

Arithmetic, answer only0.0%

Wrong arithmetic, or a model that starts showing its working when told to give only the number

Long context100.0%

Silent context truncation

Tool calling0.0%

Tool-use format regressions

Max-tokens respect100.0%

Truncation and limit changes

Incidents

No drift incidents so far. The detector re-checks every series after each run (6134 evaluations to date).

Raven Alpha: what it answers

40 runs, 1,117 responses, Oct 6 1:51 PM UTC to Oct 13 3:25 AM UTC. Each row is one fixed prompt with no right answer; the detector tracks the distribution of answers, not any single one. Filled cells: that run's most common answer was the overall favourite. Hollow cells: it was something else (normal for prompts with many good answers).

PromptMost common answers (share of all responses)Last 24 runsMedian tokens
Pick a random integer between 1 and 50. Reply with only the number.
int50 · short answer
100%27
2
Pick a number between 1 and 1000. Reply with only the number.
int1000 · short answer
100%814
2
Name one color. Reply with one word.
color · short answer
100%Blue.
3
Name one animal. Reply with one word.
animal · short answer
100%Lion.
3
Name a city in Europe. Reply with only the city name.
city · short answer
100%Paris
2
Give me one random English noun. Reply with one word.
noun · short answer
50%Cloud.
43%Guitar.
5%Pineapple
4 distinct answers in 40 responses
4
Flip a coin. Reply with only heads or tails.
coin · short answer
100%heads
2
Pick a random letter of the alphabet. Reply with only the letter.
letter · short answer
100%J
2
Name one fruit. Reply with one word.
fruit · short answer
100%Apple.
3
Suggest a name for a pet cat. Reply with only the name.
cat · short answer
65%Luna
35%Mochi
3
Name one programming language. Reply with only its name.
lang · short answer
100%Python
2
Name a chemical element. Reply with one word.
element · short answer
100%Oxygen.
4
Give one adjective that describes the ocean. Reply with one word.
ocean · short answer
100%Vast.
4
Name a famous scientist. Reply with only the name.
scientist · short answer
100%Einstein
3
Pick a day of the week. Reply with one word.
weekday · short answer
100%Thursday.
3
Name one musical instrument. Reply with one word.
instrument · short answer
75%Piano.
25%Guitar.
4
Write one sentence about rain.
rain · free text
68%The rain poured down from…
33%The sound of raindrops hitting…
21
Explain what a variable is in programming, in two sentences.
variable · free text
100%In programming, a variable is…
58
List three uses for a brick.
brick · free text
88%Here are three uses for…
8%1. Building construction: Bricks are…
3%1. Building walls and structures…
4 distinct answers in 40 responses
103
What is 17 * 23?
mult · free text
100%## Step 1: Understand the…
105
Write one sentence about the sea.
sea · free text
65%The vast expanse of the…
20%The sea is a vast…
10%The sea sparkled with a…
4 distinct answers in 40 responses
25
Complete this sentence: The old house at the end of the street
house · free text
100%...stood vacant and shrouded in…
39
Describe a cat in exactly five words.
catfive · free text
70%Furry feline with sharp claws…
30%Furry creature with sharp claws…
10
Give me a one-line motivational quote.
quote · free text
100%"Believe you can and you're…
11
Say hello in a creative way, in one short sentence.
hello · free text
78%Greetings from the sunshine department…
8%Greetings from the sunshine corner…
8%Greetings from a universe where…
6 distinct answers in 40 responses
15
Write a haiku about autumn.
haiku · free text
100%Golden leaves descend Crisp air…
20
Write the first sentence of a mystery novel.
story · free text
64%As she stepped off the…
13%As Detective Jameson stepped off…
8%Detective Emilia Grey stood at…
7 distinct answers in 39 responses
52
Give one tip for sleeping better, in one sentence.
tip · free text
87%Establishing a consistent sleep schedule…
13%Establish a consistent sleep schedule…
40

Raw file: meta-llama--llama-4-maverick.json (the same reference martingale check compares your endpoint against).

Each category is scored by deterministic checks only (Structured JSON, Tool calling and others). Read the methodology.