Model Profile · Round 01
Llama 4 Maverick
Meta · open weights · 128K ctx
Last on every reliability mode. Open-source completist only.
Composite Score
2.4
/100 · canonical
Arena ELO (R1)
1473
±42 · n=474
Multi-Turn ELO (R2)
1458
±45 · n=214
Reliability Rank
#21
failure-mode rubric
▌ Section 02 · The Lede
What this model is for.
Meta's Llama 4 Maverick lands #10 on community ELO and #11 reliability — last or near-last on most failure axes, agency floor at 3.0/5, F12 instruction drift mean of 3.77 (with a session floor at 3.2). It's the open-source completist's pick, not the writer's pick. The 34% NSFW win rate is the second-lowest in the field. Across the round, no single axis surfaces a reason to choose Maverick over its open-weight siblings.
▌ Section 03 · At a Glance
Cross-test position
Llama 4 Maverick sits at #21 on Composite, the caveat to watch.
Composite
21
Arena ELO
10
Multi-Turn
16
Rubric
21
Adversarial
21
Cost · Latency
5
▌ Section 04 · Strength & Weakness
Where it shines. Where it stumbles.
▲ Strength
No standout strength on the dimensions we tested. Open-weight, available for self-hosting if license terms suit.
▼ Weakness
Catastrophic floor on agency respect (lowest session: 3.0/5). Bottom-tier F12 instruction drift mean of 3.77 (#10 of 11), with session floor at 3.2. Second-lowest NSFW win rate in the field (34%).
▌ Section 05 · Failure Modes
Per-axis breakdown.
Six adversarial probes per session, twenty sessions per model, judged by Sonnet 4 against a fixed rubric. Further right = the model handled the failure mode better. Each axis is drawn as a band on the rubric’s 1 to 5 scale, not a number: judges disagree by about 0.3 at the model level, so overlapping bands are a tie. The right column is the rank within the rp-bench pool.
F1 · Agency
Doesn't write your character's actions
#19
F2 · POV / Tense
Holds 2nd-person, present-tense narration
#21
F3 · Lore
Doesn't break worldbuilding
#13
F8 · Momentum
Pushes scene forward when user goes passive
#12
F12 · Instruction Drift
Keeps to the system prompt
#20
F13 · Context Attention
Holds character cards 50+ turns deep
#20
“The open-source completist's pick — not the writer's pick.”
Round 01 verdict · Available, not advisable
▌ Section 06 · Subjective Dimensions
Engagement · Voice · Collaboration.
All three dimensions scored 1 to 5 by the Sonnet 4 LLM judge across twenty 12-turn multi-turn sessions. The same battery feeds the failure-mode rubric above; these are the subjective half of that judgment, drawn as bands with no number for the same reason.
Engagement
Tone Consistency
Collaboration
▌ Section 07 · Behavioral Metrics
How it writes.
Quantitative signals from the same 20 multi-turn sessions, compared against the population mean across all 11 models.
Avg words / turn
172↓
pop avg 265 · -35%
Unique-word ratio
0.646↓
pop avg 0.657 · -2%
Repetition score
0.064↑
pop avg 0.048 · +33%
▌ Section 08 · Flaw Hunter
Adversarial probe score.
Score of 100 minus deductions across 22 fail-mode flag types on adversarial 12-turn sessions. Further right = fewer flaws caught. Drawn as a band, not a number: about ten points either way is rater noise, so bands that overlap are tied.
▌ Craft band
From the Round 01/02 flaw-hunter pool. The current card carries the newer single-rater band.
Fatal/sess 0.95
Major/sess 6.65
▌ Top flaws caught
recycled_descriptionpurple_proseagency_violation
▌ Section 09 · Sample Responses
Highest- and lowest-rated turns.
▌ Pending Round 02
Best- and worst-rated sample responses ship with the raw-vote endpoint in Round 02. When that lands, this section will surface the model’s highest- and lowest-scoring blind-arena turns side by side, scored on the same rubric the leaderboard uses.
▌ Round 01 verdict
Llama 4 Maverick rounds out the open-weight side of the round, but the data doesn't surface a reason to pick it. Reliability ranks #11 of 11, agency and instruction-drift scores both bottom-tier, NSFW win rate near the floor. Pick DeepSeek v3.2 or Mistral Small Creative if you need open weights. Pick Gemma if you need open weights and engagement. Maverick is here for completeness, not preference.
▌ Section 10 · Compare & Drill
Stack it against another model.
Profile · Llama 4 Maverick · Round 01