Claude Fable 5 review: 5-3 over Opus 4.8, GPT-5.5 timed out
Claude Fable 5 review with real benchmark data: 5-3 over Opus 4.8, 3-0 vs GPT-5.5 on 12 coding and reasoning prompts. Includes subscription break-even math.
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Claude Fable 5 review with real benchmark data: 5-3 over Opus 4.8, 3-0 vs GPT-5.5 on 12 coding and reasoning prompts. Includes subscription break-even math.
We benchmarked 4 LLMs on 6 real OCR tasks: receipts, invoices, prescriptions. GPT-5.5 wins 10/18 matchups; Haiku 4.5 crumbles on JSON formatting.
DeepSeek V3 wins 10 of 15 coding and reasoning tasks against Llama 4 Maverick. Full benchmark results, three judge excerpts, and when to pick each.
We ran 4 models through 6 RAG-specific prompts testing faithfulness, citation accuracy, and I-don't-know honesty. Opus 4.8 takes 15 of 18 head-to-heads.
We ran 12 coding, math, and data tasks through Opus 4.8, Opus 4.7, and GPT-5.5 via LLMTest. Opus 4.8 swept GPT-5.5 but split with its predecessor.
Four LLMs, six French translation tasks tested by a judge: idioms, false cognates, literary register. Claude leads overall. Gemini 2.5 Flash is the value pick.
We tested four LLMs on six real buggy diffs: Claude Opus 4.7 swept the field, Haiku 4.5 beat GPT-4o 5-0, and GPT-4o finished with zero wins in 2026.
We ran 20 real prompts through Claude Sonnet 4.5 and GPT-5. Claude won 8 of 15 comparisons, ran 1.7x faster, and GPT-5 timed out on 5 of 20.
We ran 15 real coding tasks through Claude Opus 4.7 and GPT-5.5 via LLMTest. Claude won 10, GPT-5.5 won 2, 3 ties. Full outputs and verdict inside.
Four LLMs, six SQL tasks, one PostgreSQL schema. GPT-4o-mini led with 9 wins over Claude Sonnet 4.5, GPT-4o, and Gemini 2.5 Flash. Here's the full breakdown.
We ran 5 developer tasks through DeepSeek V4 Pro, GPT-5.5, Opus 4.7, and Llama 4. V4 Pro beats GPT-5.5 while costing 4.5x less, but latency averages 28 seconds.
Opus 4.7 scores higher on coding benchmarks and adds 3.75MP vision, but its new tokenizer inflates real cost by up to 35%. Here's what changed.