Reasoning effort

Max effort is a pricing dimension. We report what vendors publish. We do not ship a reasoning-tax τ point estimate — that needs first-party probes with median and IQR, n≥15.

85/405 cannot disable thinking
274 reasoning supported
189 supported and optional

Effort ladders below are vendor labels (low / high / xhigh / max). An Elo without its effort level is not a fact — see methodology.

ModelDefaultEfforts
AionLabs: Aion-2.0
AionLabs: Aion-3.0
AionLabs: Aion-3.0-Mini
AllenAI: Olmo 3 32B Think
Anthropic: Claude Fable 5highmax, xhigh, high, medium, low
Anthropic: Claude Fable 5 (batch)highmax, xhigh, high, medium, low
Arcee AI: Trinity Large Thinking
DeepSeek: R1
DeepSeek: R1 0528
Google: Gemini 2.5 Pro
Google: Gemini 2.5 Pro (batch)
Google: Gemini 2.5 Pro Preview 05-06
Google: Gemini 2.5 Pro Preview 06-05
Google: Gemini 3.1 Pro Previewmediumhigh, medium, low
Google: Gemini 3.1 Pro Preview (batch)mediumhigh, medium, low
Google: Gemini 3.1 Pro Preview Custom Toolsmediumhigh, medium, low
Google: Gemini 3.5 Flashmediumhigh, medium, low, minimal
Google: Gemini 3.5 Flash (batch)mediumhigh, medium, low, minimal
Google: Gemini 3.5 Flash Liteminimalhigh, medium, low, minimal
Google: Gemini 3.5 Flash Lite (batch)minimalhigh, medium, low, minimal
Google: Gemini 3.6 Flashmediumhigh, medium, low, minimal
Google: Gemini 3.6 Flash (batch)mediumhigh, medium, low, minimal
Google: Gemini 3.7 Flashmediumhigh, medium, low
Google: Gemini 3.7 Flash (batch)mediumhigh, medium, low
Google: Nano Banana Pro (Gemini 3 Pro Image Preview)
Google: Nano Banana Pro (Gemini 3 Pro Image)
LiquidAI: LFM2.5-2.6B (free)
Meta: Muse Glimmer 30Bmediumxhigh, high, medium, low
Meta: Muse Spark 1.1mediumxhigh, high, medium, low, minimal
Meta: Muse Spark 1.2mediumxhigh, high, medium, low, minimal
Meta: Muse Spark 1.2 Contributormediumxhigh, high, medium, low, minimal
MiniMax: MiniMax M2
MiniMax: MiniMax M2.1
MiniMax: MiniMax M2.5
MiniMax: MiniMax M2.7
MiniMax: MiniMax M2.7 (free)
MoonshotAI: Kimi K2 Thinking
MoonshotAI: Kimi K2.7 Code
MoonshotAI: Kimi K2.7 Code (batch)
OpenAI: GPT-5mediumhigh, medium, low, minimal
OpenAI: GPT-5 (batch)mediumhigh, medium, low, minimal
OpenAI: GPT-5 Codex (batch)
OpenAI: GPT-5 Image
OpenAI: GPT-5 Image Mini
OpenAI: GPT-5 Minimediumhigh, medium, low, minimal
OpenAI: GPT-5 Mini (batch)mediumhigh, medium, low, minimal
OpenAI: GPT-5 Nanomediumhigh, medium, low, minimal
OpenAI: GPT-5 Nano (batch)mediumhigh, medium, low, minimal
OpenAI: GPT-5 Prohighhigh
OpenAI: GPT-5 Pro (batch)highhigh
OpenAI: GPT-5.1-Codexmediumhigh, medium, low
OpenAI: GPT-5.1-Codex-Maxmediumxhigh, high, medium, low
OpenAI: GPT-5.2 Promediumxhigh, high, medium
OpenAI: GPT-5.2 Pro (batch)mediumxhigh, high, medium
OpenAI: GPT-5.2-Codexmediumxhigh, high, medium, low
OpenAI: GPT-5.4 Promediumxhigh, high, medium
OpenAI: GPT-5.4 Pro (batch)mediumxhigh, high, medium
OpenAI: GPT-5.5 Promediumxhigh, high, medium
OpenAI: GPT-5.5 Pro (batch)mediumxhigh, high, medium
OpenAI: gpt-oss-120bmediumhigh, medium, low
OpenAI: gpt-oss-20bmediumhigh, medium, low
OpenAI: gpt-oss-safeguard-20b
OpenAI: o3 Mini Highhighhigh
OpenAI: o3 Mini High (batch)highhigh
OpenAI: o4 Mini Highhighhigh
OpenAI: o4 Mini High (batch)highhigh
Perplexity: Sonar Pro Search
Qwen: Qwen3 235B A22B Thinking 2507
Qwen: Qwen3 30B A3B Thinking 2507
Qwen: Qwen3 Next 80B A3B Thinking
Qwen: Qwen3 VL 235B A22B Thinking
Qwen: Qwen3 VL 30B A3B Thinking
Qwen: Qwen3 VL 8B Thinking
Qwen: Qwen3.8 2.4T A95Bxhighxhigh, medium, low
Qwen: Qwen3.8 Maxxhighxhigh, high, medium, low, minimal
Reka Flash 3
Sakana: Fugu Ultraxhighmax, xhigh, high
SpaceXAI: Grok 4.20 Multi-Agentmediumxhigh, high, medium, low
SpaceXAI: Grok 4.5highhigh, medium, low
SpaceXAI: Grok 4.6highxhigh, high, medium, low

Showing 80 of 85 mandatory models.