API cost decision in 10 seconds

NewGrok 4.3 vs Google Gemini Flash Latest

Pick Grok 4.3 for lower cost; pick Google Gemini Flash Latest only if the larger context window matters more.

Page updated: 2026-05-26T10:03:26Z Data confirmed: 2026-05-26T13:08:02Z Prices normalized to USD per 1M tokens Sample workload: 1M input + 500K output

Budget verdict

Pick Grok 4.3 for lower cost; pick Google Gemini Flash Latest only if the larger context window matters more.

On the standard 1M input plus 500K output workload, Grok 4.3 is estimated at $2.5 vs $6 for Google Gemini Flash Latest, saving $3.5 (58.3% lower).

Cost-first pickGrok 4.3

Context-first pickGoogle Gemini Flash Latest

Sample savings$3.558.3%

10x traffic gap$35

Google Gemini Flash Latest has more context, but Grok 4.3 saves $3.5 on the standard workload. At 10x that traffic, the same price gap is about $35. Use the calculator below to replace the sample workload with your own token volume.

Cost sensitivity

Workload Sensitivity

Same prices, different token mixes.

Grok 4.3 stays cheaper across input-heavy, balanced, and output-heavy sample workloads.

Workload shape	Token mix	Better pick	Grok 4.3	Google Gemini Flash Latest
Input-heavy / RAG	5M input + 500K output	Grok 4.3	$7.5	$12
Balanced workload	1M input + 1M output	Grok 4.3	$3.75	$10.5
Output-heavy chatbot	1M input + 5M output	Grok 4.3	$13.75	$46.5

Cheaper input Grok 4.3 $1.25 vs $1.5 / 1M

Grok 4.3 is $0.25 cheaper per 1M input tokens (16.7% lower; 1.2x difference).

Cheaper output Grok 4.3 $2.5 vs $9 / 1M

Grok 4.3 is $6.5 cheaper per 1M output tokens (72.2% lower; 3.6x difference).

Larger context Google Gemini Flash Latest 1M vs 1.05M

Google Gemini Flash Latest has 48.58K more context (1.05x larger).

Sample workload Grok 4.3 $2.5 vs $6

Grok 4.3 is $3.5 cheaper on the standard workload (58.3% lower).

Estimate your workload cost

Your Workload Cost

Prices are normalized to USD per 1M tokens.

Monthly input tokens Monthly output tokens

Grok 4.3 Calculating… Estimated API cost

Google Gemini Flash Latest Calculating… Estimated API cost

Cheaper for this workload Calculating… Difference: calculating…

This estimate uses normalized public API pricing per 1M tokens. It is a planning aid, not a billing quote. Verify provider pricing, limits, and terms before production use.

Quick Decision

Verdict

Grok 4.3 has the lower input price; Grok 4.3 has the lower output price; Google Gemini Flash Latest offers the larger context window. For the 1M input plus 500K output sample, Grok 4.3 is cheaper for the standard workload.

For a 1M input token plus 500K output token workload, the estimated API cost is $2.5 for Grok 4.3 and $6 for Google Gemini Flash Latest.

Best Fit

Choose Grok 4.3 when you care most about lower input-token price, and lower output-token price.

Choose Google Gemini Flash Latest when you care most about larger context window.

Decision Notes

On the standard 1M input plus 500K output workload, Grok 4.3 is estimated at $2.5 vs $6 for Google Gemini Flash Latest, saving $3.5 (58.3% lower).
Grok 4.3 is $3.5 cheaper on the standard workload (58.3% lower).
Grok 4.3 is $0.25 cheaper per 1M input tokens (16.7% lower; 1.2x difference).
Grok 4.3 is $6.5 cheaper per 1M output tokens (72.2% lower; 3.6x difference).
Google Gemini Flash Latest has 48.58K more context (1.05x larger).

Head-to-Head Specs

Feature	NewGrok 4.3 (xAI)	Google Gemini Flash Latest (Google)
Input Price prompt tokens per 1M	$1.25	$1.5
Completion Price per 1M tokens	$2.5	$9
Sample Workload Cost 1M input + 500K output	$2.5	$6
Context Window	1M	1.05M
Release Date	2026-04-30	2026-04-27

Use-Case Decision Matrix

Use case	Better pick	Why
Budget-constrained production	Grok 4.3	On the standard 1M input plus 500K output workload, Grok 4.3 is estimated at $2.5 vs $6 for Google Gemini Flash Latest, saving $3.5 (58.3% lower).
High-volume input processing	Grok 4.3	Lower prompt-token price matters most when prompts, retrieved passages, or documents dominate the bill.
Long responses and chatbots	Grok 4.3	Lower output-token price matters most when assistants generate many completion tokens.
RAG or long-document work	Google Gemini Flash Latest	A larger context window leaves more room for retrieved passages, conversation history, or source files.

Related Alternatives

Same-provider lower-cost swaps

Grok Build 0.1 can replace Grok 4.3 when lower sample workload cost matters most: $2.
Gemma 4 26B A4B (free) can replace Google Gemini Flash Latest when lower sample workload cost matters most: $0.
Gemma 4 31B (free) can replace Google Gemini Flash Latest when lower sample workload cost matters most: $0.
Lyria 3 Pro Preview can replace Google Gemini Flash Latest when lower sample workload cost matters most: $0.

Larger context near this budget

Llama 4 Scout offers 10M context with $0.23 sample workload cost.
Grok 4.20 Multi-Agent offers 2M context with $5 sample workload cost.
Grok 4.20 offers 2M context with $2.5 sample workload cost.
Owl Alpha offers 1.05M context with $0 sample workload cost.

Popular competitors

DeepSeek V4 Flash · DeepSeek · #1
Hy3 preview · Tencent · #2
Claude Opus 4.7 · Anthropic · #3
Claude Sonnet 4.6 · Anthropic · #4

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xAI catalog

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Google catalog

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