Claude Haiku 5.5 vs Grok 4.7
Claude Haiku 5.5 and Grok 4.7 are closely matched at 50.0 and 47.8 on the LLM Stats Score. Claude Haiku 5.5 is 15.0x cheaper per token.
Anthropic · xAI · Updated for 2026
Which is better?
Claude Haiku 5.5 and Grok 4.7 are closely matched on the overall LLM Stats Score at 50.0 and 47.8.
In the 4 individual benchmarks reported for both models, Claude Haiku 5.5 wins 3; this is a narrower head-to-head signal than the composite indexes.
On price, Claude Haiku 5.5 is roughly 15.0x cheaper per token on a blended 3:1 input/output basis, which adds up quickly at production volume.
Claude Haiku 5.5 also accepts a larger context window (1,000,000 input tokens), making it the stronger choice for long documents and large codebases.
Based on current LLM Stats indexes, shared benchmarks, pricing, and model metadata for 2026.
Choose Claude Haiku 5.5
- you value its reported benchmark strengths — it wins 3 of 4 exact shared results
- cost matters — it's about 15.0x cheaper per token
- you process long inputs — it offers a 1,000,000 token context window
- you want the most recent training data — it shipped Oct 2026
Choose Grok 4.7
- you want predictable pricing at $2.00/M input and $6.00/M output
At a glance
The differences that matter most.
Individual benchmarks
36 reported for Claude Haiku 5.5 · 23 for Grok 4.7
Claude Haiku 5.5 outperforms in 3 benchmarks (FrontierSWE V2, HealthBench Professional, Terminal-Bench 4.0), while Grok 4.7 is better at 1 benchmark (AA-Briefcase v1.1).
Claude Haiku 5.5 shows notably better performance in the majority of benchmarks.
Human preference
Blind head-to-head votes and playground preference scores
Pricing Analysis
Price comparison per million tokens
For input processing, Claude Haiku 5.5 ($0.10/1M tokens) is 20.0x cheaper than Grok 4.7 ($2.00/1M tokens).
For output processing, Claude Haiku 5.5 ($0.50/1M tokens) is 12.0x cheaper than Grok 4.7 ($6.00/1M tokens).
In conclusion, Grok 4.7 is more expensive than Claude Haiku 5.5.*
* Using a 3:1 ratio of input to output tokens
Context Window
Maximum input and output token capacity
Claude Haiku 5.5 accepts 1,000,000 input tokens compared to Grok 4.7's 500,000 tokens. Only Claude Haiku 5.5 specifies output context (128,000 tokens).
Input capabilities
Documented input modalities across available providers
Both Claude Haiku 5.5 and Grok 4.7 support multimodal inputs.
They are both capable of processing various types of data, offering versatility in application.
Claude Haiku 5.5
Grok 4.7
License
Usage and distribution terms
Both models are licensed under proprietary licenses.
Both models have usage restrictions defined by their respective organizations.
Proprietary
Closed source
Proprietary
Closed source
Release Timeline
When each model was launched
Claude Haiku 5.5 was released on 2026-10-07, while Grok 4.7 was released on 2026-09-21.
Claude Haiku 5.5 is 1 month newer than Grok 4.7.
Oct 7, 2026
1 days ago
2w newerSep 21, 2026
2 weeks ago
Knowledge Cutoff
When training data ends
Both models have the same knowledge cutoff date of 2026-06-01.
They should have similar awareness of historical events and information up to this date.
Jun 2026
Jun 2026
Provider Availability
Claude Haiku 5.5 is available from Anthropic. Grok 4.7 is available from xAI.
Claude Haiku 5.5
Grok 4.7
Outputs Comparison
Judge for yourself.
Run your own prompts against Claude Haiku 5.5 and Grok 4.7 side-by-side, then vote on the output you prefer.
FAQ
Common questions about Claude Haiku 5.5 vs Grok 4.7.