As of August 30, 2026, Grok 4 Fast is 7% cheaper per million tokens than North Micro Vision Instruct. Grok 4 Fast is $0.20 / $0.50 per million input/output tokens versus North Micro Vision Instruct at $0.15 / $0.60. Sources: https://docs.x.ai/docs/models and https://cohere.com/pricing
Sources: xAI API pricing (https://docs.x.ai/docs/models); Cohere pricing (https://cohere.com/pricing)
Grok 4 Fast
xAI
Input
$0.20
Output
$0.50
North Micro Vision Instruct
Cohere
Input
$0.15
Output
$0.60
Token pricing, specs, and benchmarks side by side
Grok 4 FastNorth Micro Vision InstructVerdict
Both models are closely matched on benchmarks. Grok 4 Fast has the pricing advantage, making it the better value unless North Micro Vision Instruct's specific capabilities are critical to your workflow.
As of August 30, 2026, Grok 4 Fast is 7% cheaper on blended LLM API pricing. Grok 4 Fast costs $0.20 per million input tokens and $0.50 per million output tokens ($0.70 blended 1M-in + 1M-out). North Micro Vision Instruct costs $0.15 / $0.60 per million tokens ($0.75 blended). Sources: https://docs.x.ai/docs/models and https://cohere.com/pricing. The cheapest LLM for your app still depends on how many output tokens you generate.
Grok 4 Fast xAI API pricing is $0.20 input and $0.50 output per million tokens via xAI. North Micro Vision Instruct Cohere API pricing is $0.15 input and $0.60 output per million tokens via Cohere. Use those four numbers, not ChatGPT Plus or Claude Pro subscription prices, when you are comparing APIs.
Grok 4 Fast has a published LiveCodeBench score of 80%. North Micro Vision Instruct does not have that eval on this page yet.
Grok 4 Fast supports a 2M token context window, while North Micro Vision Instruct supports 128K tokens. Grok 4 Fast 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.
Shared benchmark scores for Grok 4 Fast and North Micro Vision Instruct are still limited. Check the comparison table for the evals each model has published. 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 Grok 4 Fast and North Micro Vision Instruct are production API models. For cost-sensitive production traffic, Grok 4 Fast 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 Grok 4 Fast through xAI and North Micro Vision Instruct through Cohere 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 xAI API pricing and Cohere API pricing, quoted per million tokens. Official rate sheets: https://docs.x.ai/docs/models and https://cohere.com/pricing. 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.
Grok 4 Fast supports up to 30K output tokens per request, while North Micro Vision Instruct 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.
Grok 4 Fast has a measured throughput of approximately 90 tokens/second. Throughput data for North Micro Vision Instruct 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 Grok 4 Fast or North Micro Vision Instruct 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. Grok 4 Fast costs $0.20/M input and $0.50/M output. North Micro Vision Instruct costs $0.15/M input and $0.60/M output.
Rank both on the LLM leaderboard, SWE-bench, and Humanity's Last Exam.
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