As of August 20, 2026, Grok 4.3 is 29% cheaper per million tokens than DeepSeek-V4-Pro-0813. DeepSeek-V4-Pro-0813 is $1.32 / $3.96 per million input/output tokens versus Grok 4.3 at $1.25 / $2.50. Sources: https://api-docs.deepseek.com/quick_start/pricing and https://docs.x.ai/docs/models
Sources: DeepSeek API pricing (https://api-docs.deepseek.com/quick_start/pricing); xAI API pricing (https://docs.x.ai/docs/models)
DeepSeek-V4-Pro-0813
DeepSeek
Input
$1.32
Output
$3.96
Grok 4.3
xAI
Input
$1.25
Output
$2.50
Token pricing, specs, and benchmarks side by side
DeepSeek-V4-Pro-0813Grok 4.3Verdict
Grok 4.3 offers significantly lower pricing, while DeepSeek-V4-Pro-0813 leads on benchmark performance. Your choice depends on whether cost efficiency or raw capability matters more for your use case.
As of August 20, 2026, Grok 4.3 is 29% cheaper on blended LLM API pricing. Grok 4.3 costs $1.25 per million input tokens and $2.50 per million output tokens ($3.75 blended 1M-in + 1M-out). DeepSeek-V4-Pro-0813 costs $1.32 / $3.96 per million tokens ($5.28 blended). Sources: https://api-docs.deepseek.com/quick_start/pricing and https://docs.x.ai/docs/models. The cheapest LLM for your app still depends on how many output tokens you generate.
DeepSeek-V4-Pro-0813 DeepSeek API pricing is $1.32 input and $3.96 output per million tokens via DeepSeek. Grok 4.3 xAI API pricing is $1.25 input and $2.50 output per million tokens via xAI. Use those four numbers, not ChatGPT Plus or Claude Pro subscription prices, when you are comparing APIs.
DeepSeek-V4-Pro-0813 leads on SWE-bench Verified: DeepSeek-V4-Pro-0813 at 96.4% vs Grok 4.3 at 71.4%. SWE-bench measures real GitHub fixes; LiveCodeBench measures contest programming.
DeepSeek-V4-Pro-0813 supports a 1M token context window, while Grok 4.3 supports 1M tokens. DeepSeek-V4-Pro-0813 offers a larger context window. Filling a larger window bills more input tokens, so the cheaper-per-million model can still cost more on long documents.
DeepSeek-V4-Pro-0813 leads on 19 of 20 shared benchmarks versus Grok 4.3's 1 wins. Check the comparison table for GPQA Diamond, SWE-bench, MMLU, HLE, and the other evals we track. Token price and benchmark score together are the usual LLM comparison, not either number alone.
Both DeepSeek-V4-Pro-0813 and Grok 4.3 are production API models. For cost-sensitive production traffic, Grok 4.3 has better economics on the blended 1M-in + 1M-out scale. For maximum capability, weight the benchmark table for your domain. Many production stacks route cheap models for drafts and a frontier model for the hard turn, which is usually cheaper than sending everything to the expensive API.
Yes. Call DeepSeek-V4-Pro-0813 through DeepSeek and Grok 4.3 through xAI with separate API keys, or through a gateway that already wraps both. Keep prompts in tokens, not characters, when you estimate the invoice. AnotherWrapper templates can swap providers without rewriting auth and billing.
List rates are the latest published DeepSeek API pricing and xAI API pricing, quoted per million tokens. Official rate sheets: https://api-docs.deepseek.com/quick_start/pricing and https://docs.x.ai/docs/models. Prompt caching, batch APIs, and committed-use discounts can change the invoice. Benchmark scores are from official publications and independent evals, updated as new numbers land.
DeepSeek-V4-Pro-0813 supports up to 393K output tokens per request, while Grok 4.3 supports up to an unspecified number of output tokens. Output tokens are usually the expensive half of API pricing, so a higher max output cap is a capability, not a discount.
DeepSeek-V4-Pro-0813 has a measured throughput of approximately 32.92418680531271 tokens/second. Throughput data for Grok 4.3 is not yet available. Throughput (tokens per second) and time-to-first-token are why two models with the same per-million-token price can still feel different in chat and agents.
Use the model pickers at the top of this LLM comparison. Search any model in the index and the URL updates. Open DeepSeek-V4-Pro-0813 or Grok 4.3 from the sidebar for the single-model API pricing page, or go back to the LLM pricing table to sort by cheapest blended cost.
This comparison covers API pricing, context window, throughput, and benchmark scores. DeepSeek-V4-Pro-0813 costs $1.32/M input and $3.96/M output. Grok 4.3 costs $1.25/M input and $2.50/M output.
Rank both on the LLM leaderboard, SWE-bench, and Humanity's Last Exam.
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