Grok 4.20 (Non-Reasoning) vs Step 5 Preview
Prices checked
Step 5 Preview takes 3 of 5 rounds against Grok 4.20 (Non-Reasoning). It is also the cheaper of the two to run, at $0.76 per million tokens against $1.56.
xAIGrok 4.20 (Non-Reasoning)
1M context · tool calling · reads images
$1.56/M tokensxAI's own price · $0.90 per 1,000 pages
StepFunWins 3 roundsStep 5 Preview
1M context · tool calling · reads images · open weights
$0.76/M tokensCheapest price, at NanoGPT · $0.60 per 1,000 pages
Maker's price in (lower wins)
$1.25/M
$1.05/M
Maker's price out (lower wins)
$2.50/M
$2.99/M
Cheapest price (lower wins)
none below the maker
$0.76/M at NanoGPT
Maker's price, blended (lower wins)
$1.56/M
$1.53/M
Cost per 1,000 pages (lower wins)
$0.90
$0.60
Context
1M tokens
1M tokens
Open weights
no
yes
Tool calling
yes
yes
Structured output
yes
yes
Reads images
yes
yes
Reasoning
no
yes
Released
9 Mar 2026
16 Sept 2026
Providers selling it
9
23
Price we measure against
the maker's own
the maker's own
Trains on your prompts (no is better)
no provider to check
not published
Providers selling both · 4
Eden AI$1.56 / $1.43
Impossibl$1.56 / $1.43
LLMTR$1.56 / $1.43- AI/ML API$1.56 / $1.51
Grok 4.20 (Non-Reasoning), then Step 5 Preview, per million tokens.
Go further
Add a third or fourth model, or change the weighting, in the tool.
What moved this week
- $1.05 / $2.99 $1 / $2.70
- StepFun · 7% dearer · $1.05 / $2.99 $1 / $2.70
AI/ML API · 23% cheaper ·
$1.25 / $2.50 $1.63 / $3.25
Frequently asked
- Which is cheaper, Grok 4.20 (Non-Reasoning) or Step 5 Preview?
- Step 5 Preview, at $0.76 per million tokens against $1.56 for Grok 4.20 (Non-Reasoning), blended 3 in : 1 out, read on 31 Oct 2026.
- Where is each one cheapest?
- Grok 4.20 (Non-Reasoning): nobody sells it below the maker's own price with a stated reason, so $1.56 is the number to beat. Step 5 Preview: $0.76 at NanoGPT.
- Can I buy both from one provider?
- Yes. 4 providers sell both: Eden AI, Impossibl, LLMTR, AI/ML API. The cheapest of them for the two together is Eden AI.
- Which holds more context?
- Both hold 1M tokens in one call.
Prices exclude tax, read 31 Oct 2026 from each provider's own catalog. They are per M tokens, blended 3 in : 1 out, and a page is 600 tokens in and 60 out. Bars are scaled to the larger value in each row.
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