Compare / head-to-head
Claude Haiku 4.5vsGPT-4o
Claude Haiku 4.5 leads 2 of 3 shared benchmarks. Claude Haiku 4.5 is 2.1x cheaper per token. Claude Haiku 4.5 has the larger context window (200K tokens).
Benchmarks from cited public sources; pricing from official pages; status from official provider feeds.
Shared benchmarks
2 – 1
Claude Haiku 4.5 leads
Cheaper per token
Claude Haiku 4.5
2.1x cheaper, input + output
Larger context
Claude Haiku 4.5
200K tokens
Provider uptime (30d)
100% · 94.2446%
Anthropic · OpenAI
Claude Haiku 4.5
Anthropic · released 2025-10-15
textvision
Quality
Benchmark matrix
3 shared · 1 only Claude Haiku 4.5 · 5 only GPT-4o| Benchmark | Claude Haiku 4.5 | GPT-4o | Δ | Edge |
|---|---|---|---|---|
| Reported by both · 3 | ||||
| GPQA Diamond | 71.2% ↗epoch | 46% ↗ | +25.2 pt | Claude Haiku 4.5 |
| OTIS Mock AIME 2024-2025 (Epoch AI run) | 66.7% ↗epoch | 6.4% ↗epoch | +60.3 pt | Claude Haiku 4.5 |
| SimpleQA Verified | 13.2% ↗epoch | 26% ↗epoch | -12.8 pt | GPT-4o |
| Only Claude Haiku 4.5 reports · 1 | ||||
| SWE-bench Verified | 73.3% ↗ | not reported | — | — |
| Only GPT-4o reports · 5 | ||||
| MMLU | not reported | 85.7% ↗ | — | — |
| AIME 2025 | not reported | 11.7% ↗matharena | — | — |
| AIME 2024 | not reported | 13.1% ↗ | — | — |
| FrontierMath Tiers 1-3 v2 (Epoch AI run) | not reported | 0.4% ↗epoch | — | — |
| SWE-bench Verified (Epoch AI run) | not reported | 31% ↗epoch | — | — |
Scores tagged "epoch" or "matharena" are independent runs, used only where the lab has not published its own; ⚠ marks rows MathArena flags as released after the competition. Higher is better on every row. Δ is Claude Haiku 4.5 minus GPT-4o in the benchmark's own unit. "Not reported" means the lab has not published that figure; it is not a zero. ↗ opens the source.
Specs & pricing
Side by side
Official pricing pages and model cards| Spec | Claude Haiku 4.5 | GPT-4o | Edge |
|---|---|---|---|
| Context window | 200K tokens | 128K tokens | Claude Haiku 4.5 |
| Max output | 64K tokens | 16K tokens | Claude Haiku 4.5 |
| Input price / 1M | $1 ↗ | $2.5 ↗ | Claude Haiku 4.5 |
| Output price / 1M | $5 ↗ | $10 ↗ | Claude Haiku 4.5 |
| Cached input / 1M | $0.1 ↗ | $1.25 ↗ | Claude Haiku 4.5 |
| Input + output / 1M Lower is cheaper. List prices; batch, tool and regional fees excluded. | $6 | $12.5 | Claude Haiku 4.5 |
| Modalities | text · vision | text · vision | Tie |
| Released | 2025-10-15 | 2024-05-13 | — |
| Cited benchmark scores | 4 | 9 | — |
Reliability
Provider status
Last 60 days · refreshed daily on this page · live on /statusMore matchups
Claude Haiku 4.5 vs …
Models sharing the most benchmarksMore matchups
GPT-4o vs …
Models sharing the most benchmarksBuilt by Respan
Which one wins on your data?
Public benchmarks are a starting point. Run Claude Haiku 4.5 and GPT-4o on your own prompts with Respan evals, or route to either through one gateway key with automatic failover.