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Claude Haiku 4.5 vs Inkling (free)

Side-by-side API pricing and Artificial Analysis performance for Claude Haiku 4.5 (Anthropic) and Inkling (free) (Thinkingmachines). Green cells mark the better value in each row.

Prices updated Sep 15, 2026, 9:45 PM UTC · refreshed hourly

Claude Haiku 4.5

Anthropic

Inkling (free)

Thinkingmachines

Pricing
Input $/1M$1.00Free
Output $/1M$5.00Free
Blended $/1M (3:1)$2.00Free
RAG example (30K in / 2K out)$0.04$0
Quality & speed
Intelligence Index17.625.5
Coding Index43.952.1
Agentic Index10.324.3
Output speed (tok/s)
Time to first token
Specs
Context window200K1.05M
Input modalitiestext, image, filetext, image, audio

FAQ

Which is cheaper, Claude Haiku 4.5 or Inkling (free)?

Inkling (free) has the lower blended API price at Free per 1M tokens (3:1 input:output mix), versus $2.00 for the other model. Prices are live from OpenRouter and refresh about hourly.

Which is better for RAG workloads?

For a typical RAG request (30K input / 2K output tokens), Inkling (free) costs about $0 per request versus $0.04. Also compare context windows: Claude Haiku 4.5 offers 200K and Inkling (free) offers 1.05M.

Which scores higher on Artificial Analysis benchmarks?

Inkling (free) leads on the Artificial Analysis Intelligence Index (25.5 vs 17.6). Check coding and agentic indices on this page for workload-specific tradeoffs.