Four flagship models, four very different bets on price, openness, and proof. Here is how Fable 5.1, Gemini 3.7 Flash, Kimi K3, and Qwen 3.8 Max compare.
Key takeaways
- Fable 5.1 (Anthropic, September 2026) is the most capable on its own benchmarks and the priciest at $10 per million input and $50 per million output, with cache reads cut to $0.25.
- Gemini 3.7 Flash (Google, August 2026) is the cheap fast workhorse: introductory $0.75 input and $3.75 output per million, a 1M-token context, and strong coding and agentic scores.
- Kimi K3 (Moonshot AI) is the strongest open-weight model, with downloadable weights and independent verification, including 93.4% SWE-bench Verified on Vals AI's harness and a top open-weight Intelligence Index score.
- Qwen 3.8 Max (Alibaba) is a capable multimodal enterprise API, but Alibaba has published no benchmarks, so its 'second only to Fable 5' claim is unverified for now.
- Vanaxity's recommendation: pick by the axis that binds you, cost, openness, or verified capability, and measure the finalists on your own tasks.
📖 Read the full guide on Van Data Team → Fable 5.1 vs Gemini 3.7 Flash vs Kimi K3 vs Qwen 3.8 Max
Top comments (0)