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Claude Fable 5 vs Inkling Small

Claude Fable 5 grades higher overall (90.7 against 58.2). Inkling Small costs 97% less for the same work.

Claude Fable 5

by Anthropic · #3 of 67 overall

Coming soon · price at launch
Context
1M
Input / 1M
$10.00
Output / 1M
$50.00

Inkling Small

by · #41 of 67 overall

Coming soon · price at launch
Context
512K
Input / 1M
$0.45
Output / 1M
$1.20

Better overall

Claude Fable 5

Grade 90.7 vs 58.2

Cheaper

Inkling Small

97% less, $0.64 vs $20.00 blended

Larger context

Claude Fable 5

1M vs 512K tokens

SWE-bench Verified

Claude Fable 5

95% vs 80.2%

Head to head

Public benchmarks. Longer is better; each value links to its source.

LMArena TextElo-style rating · LMArena (CC BY 4.0) · Oct 15, 2026
LMArena WebDevElo-style rating · LMArena (CC BY 4.0) · Oct 13, 2026
LMArena CodingElo-style rating · LMArena (CC BY 4.0) · Oct 15, 2026
SWE-bench Verified% of issues resolved · SWE-bench · Jun 9, 2026 · reference
SWE-Bench Pro% of tasks resolved · Scale AI SWE-Bench Pro · Jun 9, 2026 · reference
Terminal-Bench 2.1% of tasks passed · Terminal-Bench · Jun 9, 2026 · reference

Claude Fable 5Inkling Smallv = reported by the model’s maker. — = no public score yet. Arena bars span the range across every model we grade.

What it costs you

Drag to match your monthly usage.

Claude Fable 5$4,000 /month
Inkling Small$138 /month

Inkling Small saves you $3,862 a month at this usage, $46,344 a year.

At a glance

AttributeClaude Fable 5Inkling Small
Made byAnthropic
AvailabilityComing soonComing soon
Overall gradeExcellent · 90.7Strong · 58.2
Overall rank#3 of 67#41 of 67
Input price$10.00 per 1M$0.45 per 1M
Output price$50.00 per 1M$1.20 per 1M
Context window1,000,000 tokens524,288 tokens
Reasoning levelsYesNo
Reads imagesYesYes
Model IDclaude-fable-5inkling-small

Try both with one key

Same endpoint, same key, both hosted in the USA. Change one word to switch models, in Claude Code, Cursor, Cline or your own code.

Get your API key
# Ask either model the same thing
curl https://fullsendai.com/v1/chat/completions \
  -H "Authorization: Bearer $FULLSEND_API_KEY" \
  -d '{"model": "claude-fable-5", "messages": [...]}'

# …then swap one word
  -d '{"model": "inkling-small", "messages": [...]}'

Questions

Is Claude Fable 5 or Inkling Small better?

Claude Fable 5 grades 90.7 against 58.2 for Inkling Small, from public benchmarks.

Which is cheaper, Claude Fable 5 or Inkling Small?

Inkling Small: $0.45 in and $1.20 out per million tokens, against $10.00 and $50.00 through FullsendAI.

Which has the larger context window?

Claude Fable 5, with 1,000,000 tokens.

Can I use both with one API key?

Yes, once they launch: both are coming soon, at the prices shown, and both will use the same FullsendAI key.

Model rankingsAll benchmarksCompare other models

Scores: LMArena (CC BY 4.0), SWE-bench, Scale AI SWE-Bench Pro, Terminal-Bench, and model makers’ published results where marked v. Prices are FullsendAI’s, per million tokens. Data as of Oct 28, 2026.