While GPT-5.5 and Claude Opus 4.7 dominate the headlines, Chinese AI labs have been shipping cutting-edge models at a fraction of the price. DeepSeek is now on V4, Kimi on K2.6, Qwen on 3.6, GLM on 5.1 — and the pricing gap remains enormous.
Here's what builders need to know.
The contenders
| Model | Company | Context | Open Source |
|---|---|---|---|
| DeepSeek V4 | DeepSeek | 1M | Yes |
| Kimi K2.6 | Moonshot AI | 1M+ | No |
| Qwen 3.6 | Alibaba | 128K | Partial |
| GLM-5.1 | Zhipu AI | 128K | Yes |
DeepSeek V4 — The price-performance leader
DeepSeek V4 comes in two tiers: Flash and Pro. Flash is the workhorse, Pro is the heavy lifter. Both support 1M token context, thinking and non-thinking modes, tool calling, and JSON structured output.
V4 Flash:
- $0.14/M input, $0.28/M output. GPT-5.5 is ~$5/$25. That's 97% cheaper.
- Cache hit pricing just dropped to $0.0028/M input — 1/10th of the already-low price.
- Supports both standard chat and reasoning (thinking) mode.
- 384K max output tokens.
V4 Pro:
- $1.74/M input, $3.48/M output at full price, but currently 75% off: $0.435/$0.87 until May 31, 2026.
- Higher quality on complex reasoning, math, and coding vs Flash.
- At the discounted price, it's still 83% cheaper than GPT-5.5.
What's good:
- 1M context window. Up from 128K in V3. Now competitive with Kimi on long-document tasks.
- Dual mode. One API, toggle thinking on/off. No more separate "R1" endpoint.
-
Anthropic API format. DeepSeek now supports the Anthropic Messages API format natively at
/anthropic— drop-in replacement for Claude. - Open source. Weights available under MIT license.
What's missing:
- Vision/multimodal still limited vs GPT-5.5
- Function calling less polished than OpenAI
- API reliability can dip during peak hours
Price (V4 Flash): $0.14/M input, $0.28/M output. GPT-5.5: ~$5/$25. 97% cheaper.
Kimi K2.6 — Multimodal with the longest context
Moonshot AI's Kimi K2.6 is the latest in their long-context lineage, now adding vision input to the 1M+ token window.
What's good:
- 1M+ token context with vision. Feed it massive documents with embedded images, charts, and diagrams.
- K2 model also available — MoE architecture focused on code and agent capabilities.
- Strong bilingual performance (Chinese + English).
- File extraction API for document parsing (currently free).
What's missing:
- Creative writing still lags behind Claude
- No open source release
- English documentation is improving but still mostly Chinese
Qwen 3.6 — Alibaba's full-stack AI
Qwen 3.6 is Alibaba's latest flagship, backed by the massive Qwen open source ecosystem ranging from 0.5B to 72B+ parameters.
What's good:
- Full model family. Edge to cloud, with specialized coding, vision, and audio variants.
- Strong multilingual. Top-tier scores across 20+ languages.
- Qwen-Coder variant for code generation tasks.
- Vision and audio models in the same ecosystem.
What's missing:
- 128K context trails DeepSeek V4 and Kimi K2.6
- More expensive than DeepSeek V4 Flash
- Alibaba Cloud account required (more friction than DeepSeek's simple signup)
GLM-5.1 — The enterprise agent specialist
Zhipu AI's GLM-5.1 is purpose-built for structured reasoning, tool use, and enterprise agent workflows.
What's good:
- Best-in-class structured output. JSON mode, function calling, tool orchestration.
- Open source with commercial-friendly license.
- Agent-native design. Built for multi-step autonomous workflows.
- All-in-one platform. Model API, fine-tuning, knowledge base, and agent framework in one place.
What's missing:
- Near-zero brand recognition outside China
- Raw coding/math benchmarks trail DeepSeek
- English documentation still sparse
Cost comparison (per 1M tokens)
| Input | Output | vs GPT-5.5 | |
|---|---|---|---|
| GPT-5.5 | ~$5.00 | ~$25.00 | — |
| Claude Opus 4.7 | $5.00 | $25.00 | Same tier |
| Claude Sonnet 4.6 | $3.00 | $15.00 | 40% less |
| Claude Haiku 4.5 | $1.00 | $5.00 | 80% less |
| DeepSeek V4 Flash | $0.14 | $0.28 | 97% less |
| DeepSeek V4 Pro (75% off) | $0.44 | $0.87 | 91% less |
| Kimi K2.6 | ~$0.70 | ~$1.40 | 86% less |
| Qwen 3.6 | ~$0.55 | ~$2.20 | 89% less |
| GLM-5.1 | ~$0.55 | ~$0.55 | 92% less |
For a startup processing 100M tokens/month, switching from Claude Opus 4.7 to DeepSeek V4 Flash saves ~$2,400/month. For 1B tokens, that's $24,000/month — real engineering headcount money.
When to use which
Use DeepSeek V4 Flash if: You want the best price-performance ratio in AI right now. 1M context, thinking mode, 97% cheaper than GPT-5.5. The default choice for most builders.
Use DeepSeek V4 Pro if: You need higher quality on complex tasks and the 75% discount makes it a steal.
Use Kimi K2.6 if: You process documents with mixed text and images. The vision + 1M context combo is unique.
Use Qwen 3.6 if: You need a model family to fine-tune and deploy on your own infrastructure. The open source ecosystem is unmatched.
Use GLM-5.1 if: You're building autonomous agent workflows that need reliable tool calling and structured output.
Stick with GPT-5.5/Claude Opus 4.7 if: You need the absolute best agentic coding, enterprise compliance, or the plugin ecosystem.
Chinese AI models in 2026 are not "good enough for the price" — they're genuinely competitive on quality while being 10-50x cheaper. If you're building AI features, you should at minimum run your eval suite on DeepSeek V4. The cost difference is too large to ignore.
More Chinese AI tool comparisons at ToolBridge — no hype, just data.