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Model Pareto

GPT-6 Luna

OpenAIProprietaryopenai.com ↗
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Input
$0.10/M tok
Output
$0.50/M tok
Blended
$0.20/M tok · 3:1
Speed
132tok/s
Context
1Mtokens

Writing: no LMArena/EQ-Bench entry or lab-reported writing benchmark as of 2026-09-24, so its Writing entry is fully estimated from its other categories (flagged “Estimated from other categories”).

Rankings

Benchmark scores

~ italic, dashed = no published score yet, estimated from related benchmarks.

Coding

SWE-bench VerifiedEstimated
~#3 of 14 (estimated)~82.0%
  1. #1Claude Opus 596.0%
  2. #2Claude Sonnet 585.2%
  3. ~#3GPT-6 LunaEstimated82.0%
  4. #3Gemini 3.1 Pro80.6%
No published score — estimated from related benchmarks
SWE-bench Pro (Public)Estimated
~#9 of 19 (estimated)~62.5%
  1. #1Claude Opus 5.589.9%
  2. #2Claude Sonnet 5.581.3%
  3. #8Claude Sonnet 563.2%
  4. ~#9GPT-6 LunaEstimated62.5%
  5. #9Nex-N2.5-Pro61.2%
No published score — estimated from related benchmarks
LiveCodeBenchEstimated
~#6 of 20 (estimated)~85.4%
  1. #1Qwen3.8-Omni-Flash92.6%
  2. #2Qwen3.8 Flash-Next91.9%
  3. #5gpt-oss-120b87.8%
  4. ~#6GPT-6 LunaEstimated85.4%
  5. #6Gemma 4 31B80.0%
No published score — estimated from related benchmarks

Writing & chat

IFBenchEstimated
~#23 of 126 (estimated)~71.8%
  1. #1MiniMax-M382.9%
  2. #2Qwen3.8 2.4T A95B82.8%
  3. #22Gemma 4 26B A4B72.4%
  4. ~#23GPT-6 LunaEstimated71.8%
  5. #23Nemotron 3 Super 120B A12B71.5%
No published score — estimated from related benchmarks
MMMLUEstimated
~#2 of 5 (estimated)~88.4%
  1. #1Gemini 3.1 Pro92.6%
  2. ~#2GPT-6 LunaEstimated88.4%
  3. #2Gemma 4 31B88.4%
No published score — estimated from related benchmarks
LMArena Text, Non-English (Elo)Verified
#25 of 531436 Elo
  1. #1Claude Opus 5.51501
  2. #2Claude Fable 5.1Few votes1496
  3. #24Gemma 4 31BFew votes1437
  4. #25GPT-6 Luna1436
  5. #26Grok 4.71435
lmarena.ai · 2026-09-25
LMArena Text (Elo)Verified
#25 of 531442 Elo
  1. #1Claude Opus 5.51509
  2. #2Claude Fable 5.11501
  3. #24GPT-5.4 mini1448
  4. #25GPT-6 Luna1442
  5. #25Qwen3.5 397B A17B1442
lmarena.ai · 2026-09-25
EQ-Bench Creative Writing v3 (Elo)Estimated
~#10 of 26 (estimated)~1862 Elo
  1. #1GPT-6 Astra2173
  2. #2Claude Fable 5.12162
  3. #9Muse Spark 1.31906
  4. ~#10GPT-6 LunaEstimated1862
  5. #10GPT-5.6 Terra1855
No published score — estimated from related benchmarks

Vision

MMMUEstimated
~#2 of 3 (estimated)~71.3%
  1. #1Claude Haiku 4.573.2%
  2. ~#2GPT-6 LunaEstimated71.3%
  3. #2Llama 4 Maverick69.4%
No published score — estimated from related benchmarks
CharXiv ReasoningEstimated
~#5 of 9 (estimated)~81.5%
  1. #1Gemini 3.8 Flash86.2%
  2. #2Kimi K384.8%
  3. #4Qwen3.8-Omni-Flash83.5%
  4. ~#5GPT-6 LunaEstimated81.5%
  5. #5Muse Glimmer78.8%
No published score — estimated from related benchmarks
OmniDocBench v1.5Estimated
~#4 of 8 (estimated)~87.3%
  1. #1MiniMax-M391.6%
  2. #2Kimi K391.1%
  3. #2Qwen3.8 27B91.1%
  4. ~#4GPT-6 LunaEstimated87.3%
  5. #4Gemini 3.1 Pro85.3%
No published score — estimated from related benchmarks

Hard reasoning

GPQA DiamondEstimated
~#33 of 173 (estimated)~87.9%
  1. #1GPT-6 Astra96.1%
  2. #2Gemini 3.8 Flash95.3%
  3. #32Solar Pro 489.1%
  4. ~#33GPT-6 LunaEstimated87.9%
  5. #33GPT-5.4 mini87.5%
No published score — estimated from related benchmarks
AIME (latest)Estimated
~#3 of 25 (estimated)~94.4%
  1. #1Inkling97.1%
  2. #2Muse Glimmer94.7%
  3. ~#3GPT-6 LunaEstimated94.4%
  4. #3Nova 2.0 Lite94.3%
No published score — estimated from related benchmarks

Agents

τ²-bench (Telecom)Estimated
~#16 of 116 (estimated)~89.2%
  1. #1Step 3.7 Flash98.5%
  2. #2Gemini 3.1 Pro95.6%
  3. #15KAT Coder Pro V289.5%
  4. ~#16GPT-6 LunaEstimated89.2%
  5. #16MiniMax-M388.9%
No published score — estimated from related benchmarks
OSWorld-VerifiedEstimated
~#8 of 12 (estimated)~78.7%
  1. #1Kimi K384.8%
  2. #2Qwen3.8 27B84.3%
  3. #7GPT-5.578.7%
  4. ~#8GPT-6 LunaEstimated78.7%
  5. #8Gemini 3.5 Flash-Lite74.0%
No published score — estimated from related benchmarks
OSWorld 2.0Estimated
~#3 of 5 (estimated)~50.4%
  1. #1GLM-5.3 Flash59.1%
  2. #2Kimi K358.3%
  3. ~#3GPT-6 LunaEstimated50.4%
  4. #3GPT-5.6 Terra50.2%
No published score — estimated from related benchmarks
BrowseCompEstimated
~#14 of 18 (estimated)~81.8%
  1. #1Atria Dawn Preview92.5%
  2. #2GPT-6 Astra91.5%
  3. #13Nex-N2.5-Mini83.4%
  4. ~#14GPT-6 LunaEstimated81.8%
  5. #14Inkling77.1%
No published score — estimated from related benchmarks
τ-Bench Banking (AA)Estimated
~#22 of 89 (estimated)~31.5%
  1. #1Muse Spark 1.350.5%
  2. #2GLM-5.350.3%
  3. #21K2 Horizon MoVA 36B A4B32.0%
  4. ~#22GPT-6 LunaEstimated31.5%
  5. #22Inkling29.1%
No published score — estimated from related benchmarks
Not comparable across labs (1)

Kept for reference, not counted in rankings: these use a lab-specific task set, answer key or scoring, so scores can't be compared fairly across labs. Only published scores are shown.