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Chat & reasoning
Claude Fable 5
Chat & reasoning
Anthropic's most capable model. Tops the AA Intelligence Index; built for the hardest reasoning and long-horizon agentic work.
Try Claude Fable 5→Claude Opus 4.8
Chat & reasoning
Frontier all-rounder. Leads SWE-bench Pro (69%) at AA Intelligence Index v4.1 of 56 — the value pick just below Fable 5.
Try Claude Opus 4.8→GPT-5.5
Chat & reasoning
OpenAI flagship. AA Intelligence Index v4.1 of 55 — the strongest all-round frontier model.
Try GPT-5.5→Gemini 3.1 Pro
Chat & reasoning
Google DeepMind frontier. 2M context, fully multimodal, best-value frontier tier at AA 57.
Try Gemini 3.1 Pro→Grok 4.3
Chat & reasoning
xAI flagship. Always-on reasoning, 1M context, live X knowledge — the cheapest frontier model.
Try Grok 4.3→GPT-5
Chat & reasoning
OpenAI workhorse — strong general purpose at lower cost than 5.5.
Try GPT-5→Claude Sonnet 5
Chat & reasoning
Anthropic's current fast workhorse — near-Opus quality at much lower latency and cost.
Try Claude Sonnet 5→Kimi K2.6
Chat & reasoning
Moonshot's K2.6 — open-weights, 80%+ SWE-bench Verified, top-tier agentic reasoning.
Try Kimi K2.6→DeepSeek V4 Pro
Chat & reasoning
Flagship open-source MoE (1.6T) — frontier reasoning + coding with a 1M-token context, at open-weights pricing.
Try DeepSeek V4 Pro→GLM-5.2
Chat & reasoning
Zhipu's GLM-5.2 — the leading open-weights model on the AA Intelligence Index.
Try GLM-5.2→MiniMax M3
Chat & reasoning
MiniMax M3 — Apache-licensed, matches Gemini 3.1 Pro on coding at open-weights pricing.
Try MiniMax M3→Qwen 3.7 Plus
Chat & reasoning
Alibaba's flagship closed model — strong reasoning + function calling, served exclusively on Fireworks outside Alibaba's own cloud.
Try Qwen 3.7 Plus→Gemini 3.5 Flash
Chat & reasoning
Fast, cheap frontier multimodal — 1M context, strong for high-volume production.
Try Gemini 3.5 Flash→Not sure which to pick? Read our guide to the best AI model for coding or compare models head-to-head on TryAI.