Provider comparison · Updated 12 Oct 2026
Anthropic vs xAI
18 models vs 7 models
xAI is cheaper at the median: $1.25 against $5.00 per 1M input tokens across paid models, about 4× less. Its cheapest paid model, Grok Build 0.1 ($1.00), compares with Claude Haiku 5.5 ($0.10) at Anthropic. Anthropic lists 18 models; xAI lists 7 models.
Ask an AI about this pageGChatGPTCClaudePPerplexityGeGeminiXGrok
Cite
Cite this page
ModelsAtlas. “Anthropic vs xAI”. Retrieved 12 Oct 2026. https://modelsatlas.com/compare-providers/anthropic/xai
At a glance
Standard tier · highlighted = better
Anthropic
xAI
Models listed
18
7
Cheapest paid input / 1M
$0.10
$1.00
Median paid input / output
$5.00 / $25.00
$1.25 / $2.50
Highest input / 1M
$15.00
$2.00
Largest context
1M
2M
Models with a batch tier
15 of 18
1 of 7
Open-weight models
0
0
Free models
0
0
Costs for real workloads
Cheapest paid model from each provider that fits the job · monthly
Derived from standard-tier prices, 30 days. “Fits the job” means the context window holds the prompt and reply. Excludes batch and caching.
Cheapest model for each capability
Input / output per 1M
| Capability | Anthropic | xAI |
|---|---|---|
| 1M context | Claude Haiku 5.5 $0.10 / $0.50 | Grok 4.20 $1.25 / $2.50 |
Line-up by price tier
Paid models · input per 1M
| Tier | Anthropic | xAI |
|---|---|---|
| Flagship $3+ | Claude Opus 4.1 $15.00 Claude Opus 4 $15.00 Claude Fable 5.1 $10.00 Claude Fable 5 $10.00 Claude Opus 5 $5.00 +8 more | None listed |
| Mid $0.50–$3 | Claude Haiku 4.5 $1.00 Claude Sonnet 5 $2.00 Claude Sonnet 5.5 $2.00 | Grok Build 0.1 $1.00 Grok 4.20 $1.25 Grok 4.20 Multi-Agent $1.25 Grok 4.3 $1.25 Grok 4.5 $2.00 +2 more |
| Budget under $0.50 | Claude Haiku 5.5 $0.10 | None listed |
| Open weights any price | None listed | None listed |
Questions
Is Anthropic or xAI cheaper?
xAI at the median: $1.25 against $5.00 for Anthropic per 1M input tokens. Median is across each provider's paid standard-tier models, so a provider with many small models can look cheaper than its flagship is.
Which provider has more models?
Anthropic lists more: Anthropic 18, xAI 7. Counts are models with a page in our catalogue.
Do both offer batch pricing?
Anthropic: 15 models list a batch tier. xAI: 1 model list a batch tier. Where a model lists both, batch is a median 50% of standard for Anthropic and 80% for xAI.
Which has the larger context window?
xAI has the larger: Claude Fable 5 (1M tokens) at Anthropic, Grok 4.20 (2M) at xAI.
Does either provider offer open-weight models?
Anthropic: none marked open-weight. xAI: none marked open-weight.
Does either have free models?
Anthropic: none listed at no per-token charge. xAI: none.
Browse more providers
Keep going in your AI
Opens with this page as the source. We add nothing else to the prompt.
- Is Anthropic or xAI cheaper?
- Which provider has more models?
- Do both offer batch pricing?