AI Development Tools
Compare AI models and development tools side-by-side. Select your favorites and see how they stack up against each other.
🧠 AI Models
Large language models optimized for coding tasks. Compare performance benchmarks, context windows, and specialized capabilities.
Claude Opus 4.5
Premium AI
The performance benchmark with 1490 WebDev AI Elo. Best-in-class autonomous agent capabilities.
Claude Fable 5
Frontier AI
The frontier breaker 🆕 — enters at #1 with 1653 Elo on WebDev Arena, 92 points clear of #2, the widest gap this table has ever recorded. Anthropic's first generally available Mythos-class model: 1M context, 128K output, always-on adaptive thinking. At $10/$50 it is the most expensive model in the table, with mandatory 30-day data retention.
Claude Opus 4.8
Premium AI
The agentic upgrade 🆕 — enters at #2 with 1561 Elo, replacing Opus 4.7 at unchanged $5/$25 pricing. Fewer compactions on long agentic runs, better tool triggering, fast mode at 2.5x output speed, and a lower prompt cache minimum (1,024 vs 2,048 tokens).
Claude Opus 4.6
Premium AI
The proven performer — 1M context, 128K output, Agent Teams, adaptive thinking, and the deepest MCP ecosystem. Stable at 1536 Elo on WebDev Arena. Stable workflows have no urgency to migrate.
Claude Opus 4.7
Premium AI
The proven performer ⬇️ — drops from #1 to #5, displaced by its own successor and Fable 5. At 1557 Elo it is only 4 points below Opus 4.8 on the same $5/$25 pricing, making the upgrade path obvious. Expect this to exit the top 5 next month as adoption shifts to 4.8.
Claude Sonnet 4.6
General Purpose AI
The accessible powerhouse — holds at #5. Default free model on claude.ai with 1M context window (beta), adaptive thinking, and near-Opus performance at $3/$15 Sonnet pricing. Best value in the Claude lineup.
DeepSeek V4 Pro
Open Source AI
The pricing earthquake — matches frontier performance at 34x cheaper. $0.435/$0.87 per 1M tokens with permanent pricing since May 22. Cache-hit input at $0.003625. Full quality profile of models costing 10-30x more.
Gemini 3 Pro
Multimodal AI
Full video processing and 24-language voice support. Tiered pricing at $2/$12 (<200K tokens) and $4/$18 (>200K tokens).
Gemini 3.1 Pro
Multimodal AI
The efficiency champion with tiered thinking levels (Low/Medium/High). Full multimodal with 24-language voice, video processing, and native capabilities.
GLM-4.6
Open Source AI
Open-source coding model with full multimodal capabilities including voice, image, and video processing.
GLM-5
Open Source AI
The open-source leader with MIT license, self-hostable on vLLM/SGLang/Huawei Ascend. 744B MoE architecture (40B active per token). Strongest open-source value play at frontier performance.
GPT-5.2
General Purpose AI
The balanced performer with solid reasoning and massive 400K context window.
GPT-5.4
General Purpose AI
OpenAI's first model combining frontier coding, native computer use (75% OSWorld), and knowledge work. Introduces Tool Search cutting token usage by 47%.
GPT-5.5
General Purpose AI
The autonomous workhorse ⬇️ — drops two spots as Fable 5 and Opus 4.8 enter above it. Terminal-Bench 2.0 leader at 82.7% with 52.5% fewer hallucinations than GPT-5.4, but WebDev Arena sits at 1501 Elo, 152 points behind Fable 5. Still no public API pricing, limited to ChatGPT subscription tiers and Codex.
Grok 4.3
Specialized Coding AI
Always-on reasoning with native tool use and full video input (mp4/mov/webm, 5 min at 1080p). One of only six models with full video processing.
Kimi K2.5
Agentic AI
Open-source with full video processing, native multimodal capabilities, and Agent Swarm enabling up to 100 sub-agents.
Kimi K2.6
Agentic AI
Leaps to #8 on WebDev Arena with 300-agent swarms and 12-hour autonomous sessions. Open-weight with Modified MIT licensing, undercutting every closed frontier model.
Llama 4 Maverick
Open Source AI
Meta's latest open-source model with native early fusion multimodal and 200-language support.
Qwen 3.7 Max
Agentic AI
The agent-first dark horse ↔️ — holds its spot at #3 but its WebDev Arena score settled from 1541 to 1526, now below Opus 4.6. The value case at $2.50/$7.50 remains strong. Still text-only with zero vision input. Alibaba demo ran 35 hours autonomously with 1,158 tool calls.
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