Claude Haiku 4.5 vs Inkling.
Verdict by category, tale of the tape, shared benchmarks only, and cost at three workloads — all from the tracked data.
Verdict by category
| Category | Claude Haiku 4.5 | Inkling | Winner |
|---|---|---|---|
| League Score | 26.9 | 24.6 | Claude Haiku 4.5 |
| Coding (SWE-bench %) | 73.3 | — | — |
| Reasoning (GPQA %) | — | — | — |
| Context (tokens) | 200000 | 262144 | Inkling |
| Speed (tok/s) | — | — | — |
Tale of the tape
| Spec | Claude Haiku 4.5 | Inkling |
|---|---|---|
| Maker | Anthropic | Thinking Machines Lab |
| Released | Oct 15, 2025 | Jul 15, 2026 |
| League Score | 27 | 25 |
| Context | 200,000 tokens | 262,144 tokens |
| Max output | 64,000 | — |
| $/1M input | $1.00 | — |
| $/1M output | $5.00 | — |
| Weights | Closed | Open |
| Speed | — | — |
Head-to-head benchmarks (shared only)
| Benchmark | Claude Haiku 4.5 | Inkling |
|---|---|---|
| LiveBench overall | 46.0 | 47.0 |
Cost at three workloads
| Workload | Claude Haiku 4.5 | Inkling |
|---|---|---|
| Light — 1M in / 250K out | $2.25 | — |
| Standard — 10M in / 2.5M out | $22.50 | — |
| Long-context — 50M in / 5M out | $75.00 | — |
The pick
Pick Claude Haiku 4.5 if you want the higher overall League Score; coding is the priority.
Pick Inkling if you need the bigger context window; you want downloadable weights / self-hosting.
All figures from the model database — sources and dates on each model page. Cost your own workload or compare a different pair.
Frequently asked questions
Which is better overall, Claude Haiku 4.5 or Inkling?
Claude Haiku 4.5 leads on overall League Score, 27 to 25 — a gap of 2 points on a composite of sourced benchmarks. That is overall form, not every category: check the per-category verdicts before choosing.
Which is cheaper, Claude Haiku 4.5 or Inkling?
Only Claude Haiku 4.5 has published API pricing in our database ($2.00 blended per 1M tokens); Inkling has no tracked API price, so a like-for-like cost verdict is not possible.
Which has the bigger context window, Claude Haiku 4.5 or Inkling?
Inkling, with 262.1K of context against 200K for Claude Haiku 4.5.
Are Claude Haiku 4.5 and Inkling open source?
Claude Haiku 4.5 is closed weights — API access only; Inkling is open weights — it can be downloaded and self-hosted.