DeepSeek V4 Pro Alternatives
What is the best alternative to DeepSeek V4 Pro?
The closest alternative to DeepSeek V4 Pro (DeepSeek, $0.54/M blended) is GLM-5.2, from Z.ai, a config migration priced +295.4% relative to DeepSeek V4 Pro at blended (3:1) rates. The tradeoff: you'd give up loses prompt caching.
The closest match to DeepSeek V4 Pro (DeepSeek, $0.54/M) is GLM-5.2 — a config migration at +295.4% price. You'd give up: loses prompt caching.
Ranked — top 8 alternatives
| # | Model | Provider | Effort | $/M (Δ%) | tok/s (Δ%) | Context | Parity | Closeness |
|---|---|---|---|---|---|---|---|---|
| 1 | GLM-5.2 | Z.ai | config | $2.15 (+295.4%) | — | +872K | 75% | 80 |
| 2 | GPT-5.6 Terra | OpenAI | config | $4.50 (+727.6%) | +14.7% | +272K | 100% | 80 |
| 3 | GPT-5.6 Luna | OpenAI | config | $0.45 (-17.2%) | +85.3% | +272K | 75% | 75 |
| 4 | GPT-OSS 120B (Cerebras) | Cerebras | config | $0.45 (-17.2%) | +3502.9% | +3K | 50% | 75 |
| 5 | Grok 4.3 | xAI | config | $1.56 (+187.4%) | +44.1% | +872K | 75% | 73 |
| 6 | Grok-4.20 Reasoning | xAI | config | $3.00 (+451.7%) | -23.5% | +872K | 75% | 71 |
| 7 | Gemini 3.6 Flash | code-change | $3.38 (+520.7%) | +67.6% | +872K | 100% | 71 | |
| 8 | GPT-5.6 Sol | OpenAI | config | $11.25 (+1969%) | -35.3% | +272K | 100% | 71 |
Top 3, in detail
Keep the `openai` SDK; change `baseURL` and the API key.
You lose: Loses prompt caching.
You gain: Context grows from 128,000 to 1,000,000 tokens.
base_url: https://api.deepseek.com/v1 auth: Bearer API key
base_url: https://api.z.ai/api/paas/v4 auth: Bearer API key sdk: openai model: "glm-5.2"
Keep the `openai` SDK; change `baseURL` and the API key.
You gain: Context grows from 128,000 to 400,000 tokens; Max output grows from 64,000 to 128,000 tokens.
base_url: https://api.deepseek.com/v1 auth: Bearer API key
base_url: https://api.openai.com/v1 auth: Bearer API key sdk: openai model: "gpt-5.6-terra"
Keep the `openai` SDK; change `baseURL` and the API key.
You lose: No extended-thinking mode.
You gain: Context grows from 128,000 to 400,000 tokens.
base_url: https://api.deepseek.com/v1 auth: Bearer API key
base_url: https://api.openai.com/v1 auth: Bearer API key sdk: openai model: "gpt-5.6-luna"
Or don't migrate at all
One base URL, one key, change the model string — every alternative above is already callable through All AI Ask.
curl https://allaiask.com/api/v1/chat \
-H "Authorization: Bearer $ALLAIASK_API_KEY" \
-H "Content-Type: application/json" \
-d '{"model": "glm-5.2", "messages": [{"role": "user", "content": "Hello"}]}'DeepSeek gotchas when switching away
- Reasoning mode is a separate model id, not a request parameter.
Related
FAQ
What is the closest alternative to DeepSeek V4 Pro?
GLM-5.2 is the closest match: config migration, +295.4% price, losing loses prompt caching.
Can I switch off DeepSeek V4 Pro without changing my code?
Only if you stay on DeepSeek. Every cross-provider option requires at least a config change (new base URL and key); some need a code change or a full rewrite — see the effort column below.
What do I lose switching from DeepSeek V4 Pro?
Against the closest match, GLM-5.2: Loses prompt caching.
Prices and specs verified 2026-08-08.