Claude Haiku 4.5 vs Grok 4.6
Benchmark Performance
Available Benchmarks
| Benchmark | Claude Haiku 4.5 | Grok 4.6 |
|---|---|---|
| LMArena Text Arenatext-2026-09-01-011508720696 · arena_rating · leader | 1,395.2597% of row best · rating · claude-haiku-4-5-20251001; 95% CI [1392.70335168, 1397.78975878]; votes 124979; rank 144 | 1,443.75100% of row best · rating · grok-4.6-high; 95% CI [1433.62910542, 1453.86294509]; votes 3453; rank 55 |
| Overall ResultCounted from the protocol-matched rows above | 0 benchmark wins | 1 benchmark winOverall lead |
Third-party benchmark Only like-for-like primary-publisher results are shown; raw scores, relative scores, configuration, and token spend remain visible.
Technical Differences
Side-by-Side Facts
| Field | Claude Haiku 4.5 | Grok 4.6 |
|---|---|---|
| Developer | Anthropic | xAI |
| Family | Claude 4 5 | Grok 4 |
| Model | Claude Haiku 4.5 | Grok 4.6 |
| Version | Claude Haiku 4.5 | Grok 4.6 |
| Lifecycle | active | active |
| Released | 2025-10-15 | Unknown |
| Knowledge cutoff | Unknown | 2026-02-01 |
| Input modalities | Text, Image | Text, Image |
| Output modalities | Text | Text |
| Context window | 200,000 | 500,000 |
| Total parameters | Unknown | Unknown |
| Active parameters | Unknown | Unknown |
| License | Unknown | Unknown |
| Open weights | No | No |
| API available | Yes | Yes |
| Self-hostable | No | No |
| Provider access | Anthropic (Standard) | xAI (Standard) |
| Capabilities | chat, generation, reasoning, tools | chat, generation, reasoning, tools |
13 comparable fields · 6 material differences · Pair passes the primary-source comparison gate
Claude Haiku 4.5 Capabilities
Grok 4.6 Capabilities
Internal Comparison Graph
Related Comparisons
| A | Pair | B | Context |
|---|---|---|---|
Claude Fable 5.1Anthropic | vs | Grok 4.6xAI | cross-developer peersimage, text |
Claude Mythos 5.1Anthropic | vs | Grok 4.6xAI | cross-developer peersimage, text |
Claude Fable 5Anthropic | vs | Claude Haiku 4.5Anthropic | family variantsimage, text |
Claude Fable 5.1Anthropic | vs | Claude Haiku 4.5Anthropic | family variantsimage, text |
| vs | Grok 4.6xAI | family variantsimage, text | |
 Qwen3.5-35B-A3BQwen | vs | Claude Haiku 4.5Anthropic | cross-developer peersimage, text |
Claude Haiku 4.5Anthropic | vs |  Ministral-3-14B-Reasoning-2512Mistral AI | cross-developer peersimage, text |
Claude Haiku 4.5Anthropic | vs | Ministral-3-3B-Reasoning-2512Mistral AI | cross-developer peersimage, text |
Qwen3.5-35B-A3BQwen | vs | Grok 4.6xAI | cross-developer peersimage, text |
Ministral-3-14B-Reasoning-2512Mistral AI | vs | Grok 4.6xAI | cross-developer peersimage, text |
Claude Opus 4.8Anthropic | vs | Grok 4.6xAI | cross-developer peersimage, text |
Claude Opus 5Anthropic | vs | Grok 4.6xAI | cross-developer peersimage, text |
Primary Evidence
Sources and Freshness
Questions
Claude Haiku 4.5 vs Grok 4.6 FAQs
Is Claude Haiku 4.5 or Grok 4.6 better for coding?+
This comparison does not currently contain a protocol-matched coding benchmark for both Claude Haiku 4.5 and Grok 4.6, so Model Markets cannot name a coding leader from pricing, context size, or capability labels alone.
Which is cheaper, Claude Haiku 4.5 or Grok 4.6?+
Claude Haiku 4.5 is $1.00 and Grok 4.6 is $2.00 per million tokens, so Claude Haiku 4.5 is cheaper on this metric. Claude Haiku 4.5 is $5.00 and Grok 4.6 is $6.00 per million tokens, so Claude Haiku 4.5 is cheaper on this metric.
Which has a larger context window, Claude Haiku 4.5 or Grok 4.6?+
Grok 4.6 has the larger sourced context window. Claude Haiku 4.5 supports 200,000 and Grok 4.6 supports 500,000.
Which performs better in benchmarks, Claude Haiku 4.5 or Grok 4.6?+
There is no overall benchmark winner: At least two independently verified, protocol-matched benchmarks are required for an overall winner.
Can Claude Haiku 4.5 or Grok 4.6 be self-hosted?+
Both models have the same recorded self-hosting status: unsupported. Claude Haiku 4.5 is not marked open weight; Grok 4.6 is not marked open weight.
Can Claude Haiku 4.5 and Grok 4.6 understand images?+
Claude Haiku 4.5 is documented with image input; Grok 4.6 is documented with image input. This reflects supported input modalities, not vision quality.
Which can generate longer answers, Claude Haiku 4.5 or Grok 4.6?+
Neither has a larger sourced maximum output. Claude Haiku 4.5 is 64,000 and Grok 4.6 is —.
Do Claude Haiku 4.5 and Grok 4.6 support reasoning and tool use?+
Claude Haiku 4.5: reasoning, tool calling, and image input. Grok 4.6: reasoning, tool calling, and image input. Feature support does not establish relative quality.
Which is available from more inference providers, Claude Haiku 4.5 or Grok 4.6?+
Claude Haiku 4.5 has 1 sourced provider route; Grok 4.6 has 1, a tie.
Which offers better value, Claude Haiku 4.5 or Grok 4.6?+
There is no universal value winner. Compare the input and output prices above with the matched benchmark result for your workload: cheaper tokens can be offset by different quality, token usage, latency, or provider availability.