DeepSeek-V4 features an ultra-long context of one million characters and achieves leading performance domestically and in the open-source domain in agent capabilities, world knowledge, and reasoning.
deepseek-v4-flash vs grok-4.5
Output tokens cost $0.31 per million on deepseek-v4-flash and $6.00 per million on grok-4.5. Input tokens cost $0.15 per million on deepseek-v4-flash and $2.00 per million on grok-4.5. Cached input tokens are billed at $0.00 per million on deepseek-v4-flash and $0.50 per million on grok-4.5. Context windows are 1,000,000 tokens on deepseek-v4-flash and 1,000,000 tokens on grok-4.5. First-token latency measured on AIHubMix is 1.2s on deepseek-v4-flash and 1.8s on grok-4.5. Measured output throughput is 101.3 tokens/s on deepseek-v4-flash and 38.4 tokens/s on grok-4.5.
Grok 4.5 was trained on datasets spanning knowledge in coding, science, engineering, and math. With both intelligent and efficient reasoning, Grok 4.5 excels at real engineering tasks and exceeds comparable leading models at these tasks.
Specs & Pricing
Prices are per million tokens. Latency and throughput are rolling averages measured on AIHubMix.
Promotional prices show the discounted rate; see each model page for promotion windows.
Usage on AIHubMix last 30 days
Daily traffic served through AIHubMix — how demand for each model is trending.
Tokens / day
Requests / day
Live Performance last 3 days
Measured on real AIHubMix traffic, hourly buckets. Gaps mean no traffic in that hour.
Throughput (TPS)
Latency (s)
Uptime (%)
Cost Calculator
Estimate your monthly bill for the same workload on each model.
Monthly = daily × 30. Discounted rates applied where a promotion is active.
FAQ
Which is cheaper: deepseek-v4-flash, grok-4.5?
deepseek-v4-flash: $0.31/M output tokens; grok-4.5: $6.00/M. Use the cost calculator above to estimate your own workload.
Which responds faster?
deepseek-v4-flash: 1.2s first-token latency measured on AIHubMix; see the live performance charts above for how each model behaves across the day.
How large is each context window?
deepseek-v4-flash accepts 1,000,000 and grok-4.5 accepts 1,000,000 input tokens. Maximum output per request is 384,000 tokens on deepseek-v4-flash and 1,000,000 tokens on grok-4.5.
Which one generates tokens faster?
deepseek-v4-flash at 101.3 tokens/s and grok-4.5 at 38.4 tokens/s, measured as output throughput on AIHubMix — a separate metric from first-token latency.
What inputs and capabilities does each model support?
deepseek-v4-flash accepts text input and supports tool calling, function calling, structured outputs and thinking; grok-4.5 accepts text and image input and supports thinking, tool calling, function calling, structured outputs and long context.
Can I call deepseek-v4-flash and grok-4.5 with the same API key?
Yes. AIHubMix serves every model on this page behind one OpenAI-compatible endpoint, so switching between them is a one-line change to the model field — no second account, key or SDK.
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