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Best AI Models for Agents

Building AI agents? These 399 models support function calling and are ranked by their agentic capability coverage - tool use, reasoning, JSON output, streaming, vision, and web search.

399
Agent-Ready
325
+ Reasoning
368
+ JSON Mode
166
+ Web Search
19
Free

Full-Stack Agent Models

5+ agentic capabilities
#ModelScoreCaps
1Claude Fable 5.1Anthropic966
2Claude Fable 5.1 (batch)Anthropic966
3Claude Fable 5Anthropic966
4Claude Fable 5 (batch)Anthropic966
5Claude Opus 5.5Anthropic956
6Claude Opus 5Anthropic956
7Claude Opus 4.8Anthropic956
8Claude Opus 4.7Anthropic956
9GPT-5.5 ProOpenAI936
10GPT-5.5 Pro (batch)OpenAI936
11GPT-5.5OpenAI936
12Gemini 3.1 Pro Preview Custom ToolsGoogle926
13Gemini 3.1 Pro PreviewGoogle926
14Gemini 3.1 Pro Preview (batch)Google926
15GPT-5.4 ProOpenAI926
16GPT-5.4 Pro (batch)OpenAI926
17GPT-5.4OpenAI926
18GPT-5.3-CodexOpenAI916
19GPT-5.2-CodexOpenAI916
20GPT-5.2 ProOpenAI916
21GPT-5.2 Pro (batch)OpenAI916
22GPT-5.2OpenAI916
23Claude Opus 4.6Anthropic906
24GPT-5.6 Luna ProOpenAI896
25GPT-5.6 Luna Pro (batch)OpenAI896
26GPT-5.6 LunaOpenAI896
27GPT-5.6 Luna (batch)OpenAI896
28GPT-5.6 Terra ProOpenAI896
29GPT-5.6 Terra Pro (batch)OpenAI896
30GPT-5.6 TerraOpenAI896
31GPT-5.6 Terra (batch)OpenAI896
32GPT-5.6 Sol ProOpenAI896
33GPT-5.6 Sol Pro (batch)OpenAI896
34GPT-5.6 SolOpenAI896
35GPT-5.6 Sol (batch)OpenAI896
36GPT-5.5 (batch)OpenAI896
37GPT-5.4 (batch)OpenAI896
38Grok 4.7xAI896
39Grok 4.6xAI896
40Grok 4.5xAI896
41Grok 4.3xAI896
42Grok 4.20xAI896
43GPT-5.2 (batch)OpenAI896
44GPT-5.1-Codex-MaxOpenAI896
45GPT-5.1OpenAI896
46GPT-5.1 (batch)OpenAI896
47GPT-5.1-CodexOpenAI896
48GPT-5.1-Codex-MiniOpenAI896
49GPT-5 ProOpenAI896
50GPT-5 Pro (batch)OpenAI896
51GPT-5OpenAI896
52GPT-5 (batch)OpenAI896
53Grok 4.3 (batch)xAI896
54Gemini 3 Flash PreviewGoogle886
55Gemini 3 Flash Preview (batch)Google886
56Grok 4.7 (batch)xAI886
57Grok 4.6 (batch)xAI886
58o3 ProOpenAI876
59o3OpenAI876
60o3 (batch)OpenAI876
61Claude Sonnet 5.5Anthropic856
62Claude Sonnet 5Anthropic856
63Claude Sonnet 4.6Anthropic856
64Claude Opus 4.5Anthropic856
65Claude Opus 4.5 (batch)Anthropic856
66Claude Opus 4.8 (batch)Anthropic846
67Claude Opus 4.7 (batch)Anthropic846
68Claude Opus 4.6 (batch)Anthropic846
69Gemini 2.5 ProGoogle846
70Gemini 2.5 Pro Preview 06-05Google846
71Claude Opus 4.1 (batch)Anthropic836
72Claude Sonnet 4.5Anthropic826
73GPT-6 AstraOpenAI826
74GPT-6 Astra (batch)OpenAI826
75GPT-6 Astra ProOpenAI826
76GPT-6 Astra Pro (batch)OpenAI826
77o4 Mini (batch)OpenAI816
78Gemini 3.8 FlashGoogle816
79Gemini 3.8 Flash (batch)Google816
80GPT-5.4 NanoOpenAI796
81GPT-5.4 Nano (batch)OpenAI796
82GPT-5.4 MiniOpenAI796
83GPT-5.4 Mini (batch)OpenAI796
84Gemini 2.5 Flash LiteGoogle796
85Gemini 2.5 FlashGoogle796
86Gemini 3.5 Flash LiteGoogle796
87Gemini 3.5 Flash Lite (batch)Google796
88Gemini 3.5 FlashGoogle796
89Gemini 3.5 Flash (batch)Google796
90GPT-5 Mini (batch)OpenAI776
91GPT-5 NanoOpenAI776
92GPT-5 Nano (batch)OpenAI776
93Claude Sonnet 4.6 (batch)Anthropic756
94Claude Sonnet 4.5 (batch)Anthropic756
95Gemini 3.1 Flash Lite PreviewGoogle716
96Claude Haiku 5.5Anthropic706
97Claude Haiku 4.5Anthropic706
98Claude Haiku 4.5 (batch)Anthropic706
99Claude Haiku 5.5 (batch)Anthropic586
100GPT-5 MiniOpenAI416
101GPT-6.1 Terra ProOpenAI406
102GPT-6.1 Terra Pro (batch)OpenAI406
103GPT-6.1 TerraOpenAI406
104GPT-6.1 Terra (batch)OpenAI406
105Gemini 4 ArgonGoogle406
106Gemini 4 Argon (batch)Google406
107Muse Wondermeta406
108GPT-6.1 Sol ProOpenAI406
109GPT-6.1 Sol Pro (batch)OpenAI406
110GPT-6.1 SolOpenAI406
111GPT-6.1 Sol (batch)OpenAI406
112Claude Sonnet 5.5 (batch)Anthropic406
113GPT-6 Luna ProOpenAI406
114GPT-6 Luna Pro (batch)OpenAI406
115GPT-6 LunaOpenAI406
116GPT-6 Luna (batch)OpenAI406
117GPT-6 Sol ProOpenAI406
118GPT-6 Sol Pro (batch)OpenAI406
119GPT-6 SolOpenAI406
120GPT-6 Sol (batch)OpenAI406
121Claude Opus 5.5 (batch)Anthropic406
122GPT Astra Latest~openai406
123GPT Sol Latest~openai406
124GPT Terra Latest~openai406
125GPT Luna Latest~openai406
126Fugu Ultra v2sakana406
127Fugu Maxsakana406
128Muse Spark 1.3 Contributormeta406
129Muse Spark 1.3meta406
130Muse Spark 1.2 Contributormeta406
131Gemini 3.7 FlashGoogle406
132Gemini 3.7 Flash (batch)Google406
133Sakana Namazusakana406
134Muse Spark 1.2meta406
135Claude Opus 5 (batch)Anthropic406
136Gemini 3.6 FlashGoogle406
137Gemini 3.6 Flash (batch)Google406
138Muse Spark 1.1meta406
139Grok Latest~x-ai406
140Nano Banana 2.1Google-6
141Claude Sonnet 5 (batch)Anthropic-6
142Fugu Ultrasakana-6
143Nano Banana Pro (Gemini 3 Pro Image)Google-6
144Claude Fable Latest~anthropic-6
145Grok Build 0.1xAI-6
146Gemini 3.1 Flash LiteGoogle-6
147Gemini 3.1 Flash Lite (batch)Google-6
148Claude Haiku Latest~anthropic-6
149GPT Mini Latest~openai-6
150Gemini Pro Latest~google-6
151Gemini Flash Latest~google-6
152Claude Sonnet Latest~anthropic-6
153Claude Opus Latest~anthropic-6
154GPT-5.2 ChatOpenAI915
155Claude Opus 4.1Anthropic825
156Gemma 4 31BGoogle765
157Gemma 4 31B (free)Google765
158o3 Mini (batch)OpenAI745
159GPT-4o (batch)OpenAI725
160Qwen3.5 397B A17BAlibaba715
161Qwen3.5-122B-A10BAlibaba705
162GLM 5.3 FlashX LegalZhipu AI705
163GLM 5.3 FlashXZhipu AI705
164GLM 5.3 FlashZhipu AI705
165GLM 5.3 Flash (batch)Zhipu AI705
166Qwen3.5-27BAlibaba695
167GLM 5V TurboZhipu AI695
168Qwen3.5-35B-A3BAlibaba695
169Mistral Large 4Mistral AI685
170GLM 4.5VZhipu AI685
171GPT-4.1OpenAI685
172GPT-4.1 (batch)OpenAI685
173Qwen3.5-9BAlibaba675
174GPT-4o-mini (batch)OpenAI635
175GPT-4.1 Mini (batch)OpenAI595
176GPT-4.1 Nano (batch)OpenAI595
177GPT-4 Turbo (batch)OpenAI575
178Command A+Cohere525
179Kimi K2.6Moonshot AI485
180Kimi K2.5Moonshot AI485
181GPT-4.1 MiniOpenAI445
182Hy4Tencent405
183Particle-1particle-ai405
184Kimi K3.1 ProMoonshot AI405
185MiniMax M3.1 FlashMiniMax405
186DeepSeek V4.1 Flash 1017DeepSeek405
187DeepSeek V4.1 Flash 1017 (batch)DeepSeek405
188Glimpseelorian405
189Ternary Bonsai 2 9Bprism-ml405
190Muse Spark Openmeta405
191Nemotron 3.5 Super VLNVIDIA405
192Nemotron 3.5 Super VL (free)NVIDIA405
193Step 5 PreviewStepFun405
194Perceptron Mk1.5perceptron405
195Ember-1fireworks405
196Qwen3.8 Max PrimeAlibaba405
197MiMo-V2.6-Pro-UltraSpeedXiaomi405
198MiMo-V2.6-FlashXiaomi405
199MiMo-V2.6-ProXiaomi405
200Qwen3.8 Omni FlashAlibaba405
201Ternary Bonsai 2 27Bprism-ml405
202DeepSeek Flash Latest~deepseek405
203Ling 3.0 Flash VLinclusionai405
204DeepSeek V4.1 FlashDeepSeek405
205DeepSeek V4.1 Flash (batch)DeepSeek405
206Qwen3.8 Max (0902)Alibaba405
207GLM Flash Latest~z-ai405
208Qwen3.8 FlashAlibaba405
209DeepSeek V4 Flash Vision ExpDeepSeek405
210Qwen3.8 27BAlibaba405
211Qwen3.8 27B (batch)Alibaba405
212Dots3-Note Preview (free)dots-studio405
213Seed 2.1 TurboByteDance405
214Seed-2.0-CodeByteDance405
215Muse Glimmer 30Bmeta405
216Muse Glimmer 30B (batch)meta405
217Qwen3.7 FlashAlibaba405
218Kimi K3Moonshot AI405
219Kimi K3 (batch)Moonshot AI405
220Jev Routertypesafe405
221Crouton Alphastealth-5
222Kimi K2.7 CodeMoonshot AI-5
223Qwen3.7 PlusAlibaba-5
224Qwen3.7 Plus (batch)Alibaba-5
225MiniMax M3MiniMax-5
226MiniMax M3 (batch)MiniMax-5
227Step 3.7 FlashStepFun-5
228GPT Chat LatestOpenAI-5
229Mistral Medium 3.5Mistral AI-5
230Mistral Medium 3.5 (batch)Mistral AI-5
231Kimi Latest~moonshotai-5
232Qwen3.5 Plus 2026-04-20Alibaba-5
233Qwen3.6 FlashAlibaba-5
234Qwen3.6 35B A3BAlibaba-5
235Qwen3.6 27BAlibaba-5
236MiMo-V2.5Xiaomi-5
237Gemma 4 26B A4B Google-5
238Gemma 4 26B A4B (free)Google-5
239Qwen3.6 PlusAlibaba-5
240Mistral Small 4Mistral AI-5
241Seed-2.0-LiteByteDance-5
242Seed-2.0-MiniByteDance-5
243Qwen3.5-FlashAlibaba-5
244Qwen3.5 Plus 2026-02-15Alibaba-5
245Seed 1.6 FlashByteDance-5
246Seed 1.6ByteDance-5
247GLM 4.6VZhipu AI-5
248Qwen3 VL 30B A3B ThinkingAlibaba-5
249GPT-4.1 NanoOpenAI-5

Strong Agent Models

4 agentic capabilities
#ModelScore
1DeepSeek V3.2DeepSeek83
2R1 0528DeepSeek79
3DeepSeek V3.2 ExpDeepSeek72
4DeepSeek V3.1DeepSeek72
5GPT-4o (2024-11-20)OpenAI71
6GPT-4o (2024-08-06)OpenAI71
7GPT-4oOpenAI71
8GPT-4o (2024-05-13)OpenAI71
9Llama 4 MaverickMeta70
10GPT-4o-miniOpenAI69
11GLM 5.3 PrimeZhipu AI69
12GLM 5.3Zhipu AI69
13GLM 5.3 (batch)Zhipu AI69
14GLM 5.2Zhipu AI69
15GLM 5.2 (batch)Zhipu AI69
16GLM 5.1Zhipu AI68
17GLM 5 TurboZhipu AI68
18GLM 5Zhipu AI68
19GLM 4.7Zhipu AI67
20GLM 4.6Zhipu AI67

What Makes a Model Good for Agents?

Function Calling (Required)

The foundation of agentic AI. Models must be able to decide when and how to call external tools - APIs, databases, file systems, web browsers. Without this, agents can only produce text, not take action.

JSON Mode (Highly Recommended)

Agents need to produce structured, parseable output reliably. JSON mode ensures the model always returns valid JSON, preventing the parsing errors that break automated workflows.

Reasoning (For Complex Tasks)

Chain-of-thought reasoning helps agents plan multi-step sequences, recover from errors, and make better decisions about which tools to use. Critical for complex autonomous workflows.

Streaming (For Real-Time UX)

Streaming lets you observe agent actions in real-time - see which tools it's calling, watch it reason through problems, and intervene early if it goes off track. Essential for interactive agent interfaces.

Vision (For Multimodal Agents)

Vision-capable agents can process screenshots, analyze charts, read documents, and interact with visual interfaces. Required for browser automation, document processing, and GUI agents.

Web Search (For Research Agents)

Built-in web search lets agents find current information without custom search tool integrations. Ideal for research agents, fact-checkers, and competitive analysis workflows.

Frequently Asked Questions

Agent-capable models need strong function calling (tool use), reasoning ability, long context windows, and reliable instruction following. They must decide when to use tools, handle multi-step plans, and recover from errors.

GPT-4o, Claude 3.5 Sonnet, and Gemini 2.0 are the top choices for AI agents. They offer reliable function calling, strong reasoning, and the ability to maintain context across long multi-step workflows.

Chatbots respond to individual messages. AI agents autonomously execute multi-step tasks - browsing the web, writing code, calling APIs, and making decisions. Agents use tool calling and planning capabilities that go beyond simple conversation.

Best AI Models for Building Agents (2026) | LM Market Cap