Tutorials, deep dives and product notes — built for developers.
The definitive SWE-bench Pro leaderboard. 31 AI models ranked by real GitHub issue resolution. Claude Fable 5 leads at 80.3%. Includes model size, license, pricing, and source links. Updated June 9, 2026.
Qwen 3.7 Max beats GPT-5.5 on SWE-bench Pro (60.6% vs 58.6%) — the hardest coding benchmark. Costs 4x less. But GPT dominates Terminal-Bench, DeepSWE, and ARC-AGI-2. Full comparison.
GPT-5.5 costs $30/1M output. DeepSeek V4 Pro costs $0.87. That's 34× cheaper — but the SWE-bench Pro gap is just 3.2 points (58.6% vs 55.4%). On LiveCodeBench, DeepSeek leads at 93.5%. When does GPT-5.5 justify its premium? Full data-driven coding comparison.
What SWE-bench Pro actually measures, how it works (1,865 tasks, 41 repos, 123 languages), why OpenAI abandoned SWE-bench Verified, the DeepSWE audit that found 32% verifier errors, and how to use coding benchmarks correctly. The definitive explainer.
17 budget AI coding models ranked by output price ($0.28–$5.00/1M), SWE-bench Pro scores, and real-world CodingFleet speed. DeepSeek V4 Flash cheapest ($0.28). MiniMax M3 best open-weight (59.0% Pro). GPT-5.4 Mini fastest (439.8 char/s). Complete value-per-dollar analysis.
Both $15/1M output. GPT-5.4 is faster (242.5 char/s vs 173.3 on CodingFleet) and stronger on benchmarks (SWE-bench Pro +14, Terminal-Bench +16). Sonnet 4.6 counters with 90% cache discounts, no long-context surcharge, and mature Claude Code ecosystem. The real verdict: use both.
Claude Fable 5 now leads ORM queries & DB administration (80.3% Pro, 88.0% Terminal-Bench). Gemini still leads text-to-SQL. Updated June 9, 2026.
Qwen 3.7 Max — Alibaba's "Agent Frontier" — challenges GPT-5.5 and Claude Opus 4.8 with 60.6% SWE-bench Pro, 91.6% LiveCodeBench, and a record-breaking 53.5% SciCode. At $7.50/1M output with Anthropic API compatibility. Full benchmark comparison, Tetris bot real-world test, and the verbosity tax explained.
From 33.4% Verified to 93.9% — Fable 5 breaks 90%. GPT-5.5's 47-day Terminal-Bench reign ends. Track 27 months of AI coding progress with new charts. Updated June 9, 2026.
A heavy AI coding user burning 200M output tokens/month on GPT-5.5 pays $6,000/month. The same workload on DeepSeek V4 Pro costs $174. The benchmarks gap? 3.2 points on SWE-bench Pro. Here's how to build a coding stack that gives you 95% of flagship performance for 3% of the cost.
Claude Fable 5 is the new #1 for game development (80.3% Pro, 88.0% Terminal-Bench, 85.0% OSWorld). Unity C#, Godot, Roblox, Unreal C++ — updated June 9, 2026.
Claude Fable 5 is the new Python coding king (80.3% SWE-bench Pro). Updated June 9, 2026 with full Fable 5 benchmarks.