Text & Chat Models (LLMs)

Google (Gemini & Gemma)

• gemini-2.5-pro
• gemini-2.5-pro-grounding-exp
• gemini-2.5-flash
• gemini-2.5-flash-preview-09-2025
• gemini-2.5-flash-lite-preview-09-2025-no-thinking
• gemini-2.5-flash-lite-preview-06-17-thinking
• gemini-3-pro
• gemini-2.0-flash-001
• gemma-3-27b-it
• gemma-3n-e4b-it

OpenAI (GPT & O-Series)

• gpt-5.1 / gpt-5.1-high
• gpt-5-chat
• gpt-5-high / gpt-5-high-new-system-prompt / gpt-5-high-no-system-prompt
• gpt-5-mini-high / gpt-5-nano-high
• chatgpt-4o-latest-20250326
• gpt-4.1-2025-04-14 / gpt-4.1-mini-2025-04-14
• gpt-oss-120b / gpt-oss-20b
• o3-2025-04-16 / o3-mini
• o4-mini-2025-04-16

Anthropic (Claude)

• claude-3-7-sonnet-20250219 (+ thinking/thinking-32k)
• claude-3-5-sonnet-20241022
• claude-3-5-haiku-20241022
• claude-opus-4-5-20251101 (+ thinking-32k)
• claude-sonnet-4-5-20250929 (+ thinking-32k)
• claude-haiku-4-5-20251001
• claude-opus-4-1-20250805 (+ thinking-16k)
• claude-opus-4-20250514 (+ thinking-16k)
• claude-sonnet-4-20250514 (+ thinking-32k)

xAI (Grok)

• grok-3-mini-beta / grok-3-mini-high
• grok-4.1 / grok-4.1-thinking
• grok-4-1-fast-reasoning / grok-4-1-fast-non-reasoning
• grok-4-0709
• grok-4-fast-chat / grok-4-fast-reasoning

Alibaba (Qwen)

• qwen3-max-2025-09-23 / 09-26 / 10-20
• qwen3-max-preview / qwen3-max-thinking
• qwen3-next-80b-a3b-instruct / thinking
• qwen3-235b-a22b (+ instruct/thinking/no-thinking)
• qwen3-30b-a3b (+ instruct)
• qwen3-coder-480b-a35b-instruct
• qwen3-omni-flash
• qwq-32b
• Vision Understanding: qwen3-vl-235b-a22b (+instruct/thinking), qwen3-vl-8b (+instruct/thinking), qwen-vl-max-2025-08-13

DeepSeek

• deepseek-v3.2
• deepseek-v3.2-thinking
• deepseek-v3-0324

Meta (Llama)

• llama-3.3-70b-instruct
• llama-4-maverick-17b-128e-instruct

Mistral

• mistral-large-3
• mistral-medium-2505 / 2508
• mistral-small-2506 / 3.1-24b-instruct-2503
• magistral-medium-2506

Other Text Models

• Baidu: ernie-5.0-preview (1103/1120), ernie-exp (various dates)
• Zhipu: glm-4.5, glm-4.5-air, glm-4.5v, glm-4.6
• MiniMax: minimax-m1, minimax-m2, minimax-m2-preview
• Tencent: hunyuan-t1-20250711, hunyuan-vision-1.5-thinking
• Amazon: nova-2-lite, amazon-nova-experimental-chat, amazon.nova-pro-v1:0
• Misc: command-a-03-2025, ling-1t, ling-flash-2.0, step-3, ring-flash-2.0, intellect-3

Image Generation Models

Google (Imagen/Gemini)

• gemini-3-pro-image-preview (Standard, 2k, and 4k versions)
• gemini-2.5-flash-image-preview
• gemini-2.0-flash-preview-image-generation
• imagen-4.0-generate-001
• imagen-4.0-fast-generate-001
• imagen-4.0-ultra-generate-001
• imagen-3.0-generate-002

Black Forest Labs (Flux)

• flux-2-pro
• flux-2-dev
• flux-2-flex
• flux-1-kontext-pro
• flux-1-kontext-dev
• flux-1-kontext-max

OpenAI

• dall-e-3
• gpt-image-1
• gpt-image-1-mini
• gpt-image-1-high-fidelity

Alibaba (Qwen Image)

• qwen-image-edit
• qwen-image-prompt-extend

Tencent (Hunyuan)

• hunyuan-image-3.0
• hunyuan-image-3.0-fal
• hunyuan-image-2.1

Wan / Video Models

• wan2.5-preview
• wan2.5-t2i-preview (Text to Image)
• wan2.5-i2i-preview (Image to Image)
• vidu-q2-image
• reve-v1 / reve-fast-edit

Other Visual Models

• recraft-v3
• ideogram-v3-quality
• seedream-3 / seedream-4.5 / seedream-4-high-res-fal
• seededit-3.0
• mai-image-1
• photon
• lucid-origin
• hazel-gen-2 / 4
• hazel-edit-2 / 6
• hidream-e1.1
• tangerine
• ghost-pepper

Hidden / Anonymous / Battle Models

These are internal codenames, blind test models, or obfuscated names specific to the Arena.

The "Beluga/Phantom" Series:

• beluga-1128-1
• phantom-1203-1
• phantom-mm-1125-1

The "Raptor" Series:

• raptor (base, 1110, 1119, 1123, 1124, 1202)
• raptor-llm (1017, 1024, 1125, 1205)
• raptor-vision (1015, 1107)

The "EB / X1" Series:

• EB45-turbo
• EB45-turbo-vl-0906
• EB45-vision
• x1-1-preview-0915
• x1-turbo-0906

Anonymous IDs:

• anonymous-1111, 1010, 915, 922, 925
• lmarena-internal-test-only
• not-a-new-model
• stephen-v2 / stephen-vision-csfix

Abstract Codenames:

• aegis-core, blackhawk, blitzphase, bridge-mind, dark-dragon, dashspark, evo-logic
• flashstride, flying-octopus, frame-flow, gauss, holo-scope, integrated-info
• leepwal, micro-mango, monster, monterey, neon, newton
• nightride-on / v2, rain-drop, redwood, route66, rushstream
• seahawk, silentnova, silvandra, skyhawk, sunshine-ai
• swiftflare, voltwhirl, viper, whisperfall, winter-wind