15 models
Ranked by Humanity's Last Exam
Reasoning Tools 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
32 providers
Reasoning Tools 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
37 providers
Reasoning 62.1

Muse Spark 1.1 is a multimodal reasoning model from Meta, built for agentic tasks. It accepts text, images, video, audio, and PDF documents and returns text, with a 1M-token context...

meta/muse-spark-1.1 2026-04-08 1.04858M context $1.25/M input $4.25/M output
12 providers
Reasoning Tools 58.7

GPT-5.4 Pro is OpenAI's most advanced model, building on GPT-5.4's unified architecture with enhanced reasoning capabilities for complex, high-stakes tasks. It features a 1M+ token context window (922K input, 128K...

openai/gpt-5.4-pro 2026-03-05 1.05M context $30/M input $180/M output
19 providers
Reasoning Tools 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
44 providers
Reasoning Tools JSON 57.2

GPT-5.5 Pro is OpenAI’s high-capability model optimized for deep reasoning and accuracy on complex, high-stakes workloads. It features a 1M+ token context window (922K input, 128K output) with support for...

openai/gpt-5.5-pro 2026-04-23 1.05M context $30/M input $180/M output
18 providers
Reasoning Tools JSON 57.2

GPT-6 Astra is OpenAI's flagship model for demanding end-to-end work. It is suited for advanced analysis, software engineering, deep research, scientific work, and document creation, with particular strengths in long-horizon...

openai/gpt-6-astra 2026-09-04 1.05M context $10/M input $50/M output
18 providers
Reasoning Tools 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
40 providers
Reasoning Tools JSON 52.2

GPT-5.5 is OpenAI’s frontier model designed for complex professional workloads, building on GPT-5.4 with stronger reasoning, higher reliability, and improved token efficiency on hard tasks. It features a 1M+ token...

openai/gpt-5.5 2026-04-23 1.05M context $5/M input $30/M output
46 providers
Reasoning Tools JSON 52.1

GPT-5.4 is OpenAI’s latest frontier model, unifying the Codex and GPT lines into a single system. It features a 1M+ token context window (922K input, 128K output) with support for...

openai/gpt-5.4 2026-03-05 1.05M context $2.5/M input $15/M output
42 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
45 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
31 providers
Reasoning Tools 43.6

Preview Qwen flagship for million-token multimodal reasoning and long-horizon agentic workflows

alibaba/qwen3.8-max-preview 2026-07-19 1M context $2/M input $6/M output
6 providers
Reasoning Tools 41.4

Qwen frontier model tuned for agent frameworks, coding assistants, and long tasks

alibaba/qwen3.7-max 2026-05-21 1M context $2.5/M input $7.5/M output
31 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
31 providers