12 models
Ranked by Humanity's Last Exam
Reasoning Tools JSON 67.7

Claude model for long-running agentic coding and knowledge work

anthropic/claude-opus-5-5 2026-09-22 1M context $4/M input $20/M output
35 providers
Reasoning Tools JSON 65.0

Claude model for demanding reasoning and long-horizon agentic work

anthropic/claude-fable-5-1 2026-09-01 1M context $10/M input $50/M output
36 providers
Reasoning Tools JSON 64.7

Claude Opus 5 is Anthropic’s flagship model for demanding reasoning, coding, and long-horizon agentic work. It is particularly strong at end-to-end software tasks, code review and bug finding, visual analysis...

anthropic/claude-opus-5 2026-07-24 1M context $5/M input $25/M output
41 providers
Reasoning Tools JSON 64.5

Claude Fable 5 is a Mythos-class model from Anthropic, built for autonomous knowledge work and coding. It supports text, image, and file inputs with text output, with reasoning support and...

anthropic/claude-fable-5 2026-06-09 1M context $10/M input $50/M output
45 providers
Reasoning Tools JSON 64.5

Fast Claude model for everyday coding, agents, and knowledge work

anthropic/claude-sonnet-5-5 2026-09-28 1M context $2/M input $10/M output
33 providers
Reasoning Tools JSON 57.9

Top Claude Opus tier for the hardest reasoning, coding, and long-horizon agents

anthropic/claude-opus-4-8 2026-05-28 1M context $5/M input $25/M output
48 providers
Reasoning Tools JSON 57.4

Fast Claude model for responsive assistance, classification, and lightweight agents

anthropic/claude-haiku-5-5 2026-10-07 1M context $0.1/M input $0.5/M output
33 providers
Reasoning Tools JSON 54.7

Stronger Opus tier for advanced software work and high-stakes reasoning

anthropic/claude-opus-4-7 2026-04-16 1M context $5/M input $25/M output
44 providers
Reasoning Tools JSON Open weights 54.7

Open flagship GLM for long-horizon coding agents and million-token context work

zhipuai/glm-5.2 2026-06-13 1M context $1.195/M input $4.183/M output
81 providers
Reasoning Tools 46.8

Claude workhorse for coding agents, careful analysis, and production cost control

anthropic/claude-sonnet-4-6 2026-02-17 1M context $3/M input $15/M output
49 providers
Reasoning Tools JSON 44.4

Gemini 3.1 Pro Preview is Google’s frontier reasoning model, delivering enhanced software engineering performance, improved agentic reliability, and more efficient token usage across complex workflows. Building on the multimodal foundation...

google/gemini-3.1-pro-preview 2026-02-19 1.04858M context $2/M input $12/M output
37 providers
Reasoning Tools JSON 40.2

Gemini 3.5 Flash is Google's high-efficiency multimodal model, bringing near-Pro level coding and reasoning at Flash-tier cost and speed. It is highly optimized for coding proficiency and parallel agentic execution...

google/gemini-3.5-flash 2026-05-19 1.04858M context $1.5/M input $9/M output
36 providers