xAI Grok
Grok 4.1 Fast (Non-Reasoning)
$0.275 / 1M tokens
cheapest at Google Cloud Vertex AI · $0.20 in · $0.50 out
No category wins
Head to head · prices updated Oct 31, 2026
Claude Haiku 5.5 is 27% cheaper than Grok 4.1 Fast (Non-Reasoning) at their cheapest providers (blended 3 input : 1 output tokens).
xAI Grok
$0.275 / 1M tokens
cheapest at Google Cloud Vertex AI · $0.20 in · $0.50 out
No category wins
Anthropic Claude
$0.20 / 1M tokens
cheapest at Anthropic · $0.10 in · $0.50 out
Wins 3 of 3
Verdict
Claude Haiku 5.5 is 27% cheaper than Grok 4.1 Fast (Non-Reasoning) at their cheapest providers (blended 3 input : 1 output tokens).
Claude Haiku 5.5 accepts longer prompts (1000K vs 128K tokens).
Your monthly bill
Claude Haiku 5.5 saves you $1.00 a month ($12.00 a year) for this workload.
| Grok 4.1 Fast (Non-Reasoning) | Claude Haiku 5.5 | |
|---|---|---|
| Cheapest blended price / 1M | $0.275 | $0.20 |
| Input / output per 1M | $0.20 / $0.50 | $0.10 / $0.50 |
| Accuracy (GPQA Diamond) | not measured | 89.6% (max reasoning) |
| Max context | 128K | 1M |
| Providers we track | 2 | 4 |
Standard list prices at each model's cheapest provider we track; blended = 3 input : 1 output tokens. GPQA Diamond from Epoch AI (CC BY 4.0), best measured reasoning setting, named next to each score. Methodology.
Claude Haiku 5.5 is 27% cheaper than Grok 4.1 Fast (Non-Reasoning) at their cheapest providers (blended 3 input : 1 output tokens).
From $0.20 input and $0.50 output per 1M tokens at Google Cloud Vertex AI, the cheapest of 2 providers we track.
From $0.10 input and $0.50 output per 1M tokens at Anthropic, the cheapest of 4 providers we track.
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