300 models ranked for automation use cases. Function calling (tool use) and JSON mode are critical for building reliable automated workflows. Scored with heavy bonuses for these capabilities.
| # | Model | Score |
|---|---|---|
| 1 | GPT-5.4 ProOpenAI | 94 |
| 2 | GPT-5.4OpenAI | 94 |
| 3 | GPT-5.4 MiniOpenAI | 93 |
| 4 | GPT-5.2 ProOpenAI | 93 |
| 5 | GPT-5.2OpenAI | 93 |
| 6 | Claude Opus 4.6Anthropic | 92 |
| 7 | GPT-5 ProOpenAI | 92 |
| 8 | o3 Deep ResearchOpenAI | 92 |
| 9 | Claude Opus 4.5Anthropic | 90 |
| 10 | GPT-5OpenAI | 90 |
| 11 | Claude Sonnet 4.6Anthropic | 89 |
| 12 | Claude Sonnet 4.5Anthropic | 89 |
| 13 | o3 ProOpenAI | 88 |
| 14 | Gemini 3 Flash PreviewGoogle | 89 |
| 15 | Grok 4.1 FastxAI | 87 |
| 16 | Grok 4.20 BetaxAI | 86 |
| 17 | Grok 4xAI | 86 |
| 18 | o3OpenAI | 86 |
| 19 | GPT-5.1OpenAI | 85 |
| 20 | GPT-5.4 NanoOpenAI | 85 |
| 21 | GPT-5.3-CodexOpenAI | 85 |
| 22 | GPT-5.2-CodexOpenAI | 85 |
| 23 | GPT-5.1-Codex-MaxOpenAI | 85 |
| 24 | o4 Mini Deep ResearchOpenAI | 85 |
| 25 | o4 Mini HighOpenAI | 85 |
| 26 | Grok Code Fast 1xAI | 85 |
| 27 | o4 MiniOpenAI | 84 |
| 28 | Gemini 3.1 Pro PreviewGoogle | 86 |
| 29 | Grok 4 FastxAI | 83 |
| 30 | MiMo-V2-OmniXiaomi | 85 |
Function calling lets AI invoke APIs, update databases, send notifications, and chain multi-step processes. Build complex automations that react intelligently to dynamic inputs.
JSON mode ensures structured, parseable output for downstream systems. Extract data from documents, classify content, and transform information at scale with reliable formatting.
Reasoning models analyze complex scenarios with chain-of-thought transparency. Ideal for approval workflows, anomaly detection, and automated decision trees that need to explain their logic.
Streaming enables real-time responses to incoming events. Process webhooks, handle live data feeds, and respond to triggers with minimal latency for time-sensitive workflows.
Based on our composite scoring updated hourly, the top-ranked models are shown at the top of this page. Rankings consider benchmarks, pricing, capabilities, and community adoption.
Yes, several models listed on this page offer free tiers or are fully open-source. Look for models marked as Free in the pricing column above.
We use a composite scoring system combining benchmark performance, capability matching, pricing, context window size, and community adoption. Scores are updated hourly.
Rankings refresh every hour using real-time data from benchmarks, API testing, and community metrics. The data shown always reflects the most current performance.