Blog
DeepSeek V4 Vision: What Flash-Class Image Input Means for Builders
DeepSeek V4 vision (Aug 21, 2026): Flash-class text plus native image input, 384 tokens/image cap, Files API reuse. A living guide for builders — starting with the current experimental Flash vision SKU.
Seedance 2.5: What ByteDance's 30-Second Video Model Means for Creators
ByteDance Seedance 2.5 (July 31, 2026): 30s one-pass A/V, up to 30/10/10 refs, timestamp editing. Practical guide for bytedance/seedance-2.5 vs 2.0.
Kimi K3 Fast: Same Flagship, Higher Throughput — When to Pay for Speed
moonshotai/kimi-k3-fast is the high-throughput serving path for Kimi K3—same weights, ~1.5× list price ($4.50/$22.50). When Fast beats standard for agents.
GPT-5.6 Sol vs Terra vs Luna: Which Tier Should Builders Use?
OpenAI’s GPT-5.6 is three tiers—Sol, Terra, Luna—not one model. Shared 1.05M context, different prices ($5/$30, $2.50/$15, $1/$6). How to route real workloads.
Claude Opus 5 and Opus 5 Fast: Which One Should Builders Use?
Anthropic’s Claude Opus 5 (July 24, 2026) brings near–Fable 5 capability at Opus pricing, plus a ~2.5× Fast tier. How to choose anthropic/claude-opus-5 vs anthropic/claude-opus-5-fast.
Kimi K3: What Moonshot’s 2.8T Flagship Means for Builders
Moonshot's Kimi K3 (2.8T MoE, 1M context, native vision) with $3/$15 pricing — plus when to use the Fast SKU. Practical guide for coding and knowledge-work agents.
Seedream 5.0 Pro: What ByteDance's Design-First Image Model Means for Creators
ByteDance Seedream 5.0 Pro launched July 8, 2026 for production design: dense infographics, pixel-level edits, multilingual text, and per-image pricing. Here is how builders should adopt it.
Grok 4.5: Opus-Class Capability at Workhorse Pricing
SpaceXAI's Grok 4.5 launched July 8–9, 2026 with a 500K context window, coding/agent tooling, and $2/$6 per million tokens. What Musk called Opus-class on X — and how builders should evaluate it.
Claude Opus 4.8: The Production Default Before You Reach for Fable 5
Anthropic's flagship Opus 4.8 ships 1M context by default at $5/$25, with adaptive thinking and strong agentic coding scores. A builder's guide to specs, migration, effort tuning, and when to escalate to Fable 5.
DeepSeek V4: How to Choose Between V4-Pro and V4-Flash
DeepSeek V4 ships as two models — V4-Pro and V4-Flash — sharing a 1M-token context but sitting at very different price/capability points. A practical guide to which to use, what they cost, and how to route between them.
Claude Fable 5: What Anthropic's Most Capable Model Means for Builders
Anthropic's most capable public model is available worldwide again. Here is what Claude Fable 5 costs, the new effort and refusal behaviors to design around, and how to adopt it pragmatically.
One API Key, Every Major Model
A single OpenAI-compatible endpoint to reach flagship models across providers, with routing, fallback, and unified billing.