Compare performance benchmarks, coding intelligence, reasoning evaluations, context limits, and API economics between Grok 4.7 (xAI) and Claude Haiku 5.5 (Anthropic).
| Metric / Capability | Grok 4.7 | Claude Haiku 5.5 |
|---|---|---|
| Developer / Organization | xAI | Anthropic |
| Release Date | 2026-09-21 | 2026-10-07 |
| Deployment / Weights | Proprietary Cloud API | Proprietary Cloud API |
| Context Window | 500K tokens (500,000 tokens) | 1M tokens (1,000,000 tokens) |
| Input Pricing (/1M Tokens) | $2 | $0.1 |
| Output Pricing (/1M Tokens) | $6 | $0.5 |
| Benchmark / Domain | Grok 4.7 | Claude Haiku 5.5 | Advantage |
|---|---|---|---|
Artificial Analysis Intelligence Index Composite index aggregating 10+ evaluations of general reasoning and knowledge. | 46.4% | 43.4% | Grok 4.7 (+7%) |
Artificial Analysis Coding Agent Index v2.0 Composite index of coding-agent systems (model + harness) across FrontierCode v1.1, SWE-Atlas-QnA, and Terminal-Bench v4. | 46.6% | 37.3% | Grok 4.7 (+25%) |
Terminal-Bench 4.0 Sandboxed command-line tasks requiring shell and file-system operation. | 38.0% | 39.2% | Claude Haiku 5.5 (+3%) |
ARC-AGI-2 Novel visual grid puzzles requiring abstract rule induction. | 61.4% | 61.3% | Grok 4.7 leads |
Humanity's Last Exam Expert-written questions across hundreds of disciplines designed to resist saturation. | — | 45.9% | — |
FrontierMath v2 (Tiers 1-3) Unpublished, research-level mathematics problems across Tiers 1-3. | 53.0% | 75.1% | Claude Haiku 5.5 (+42%) |
Design Arena ELO Human-preference ELO across UI, 3D, data-visualization, and game-dev generations. | 1314 | 1344 | Claude Haiku 5.5 (+2%) |
Both models perform neck-and-neck across available benchmarks, with Grok 4.7 and Claude Haiku 5.5 each excelling in distinct tasks.
Claude Haiku 5.5 has the larger context capacity of 1M tokens (1,000,000 tokens), compared to 500K tokens for Grok 4.7.
Claude Haiku 5.5 is more economical. Input tokens cost $0.1/M tokens compared to $2/M tokens for Grok 4.7.
Grok 4.7 is a proprietary cloud API. Claude Haiku 5.5 is a proprietary cloud API.
Analyze 130+ models side-by-side using interactive radar charts, cost-efficiency quadrant plots, and live dataset filters on the full NeuBench index.
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