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Claude Fable 5 vs Meta Llama 3.1 70B Instruct Turbo

Claude Fable 5 grades higher overall (90.7 against 26.8). Meta Llama 3.1 70B Instruct Turbo costs 98% 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

Meta Llama 3.1 70B Instruct Turbo

by Meta · #63 of 67 overall

Coming soon · price at launch
Context
128K
Input / 1M
$0.40
Output / 1M
$0.40

Better overall

Claude Fable 5

Grade 90.7 vs 26.8

Cheaper

Meta Llama 3.1 70B Instruct Turbo

98% less, $0.40 vs $20.00 blended

Larger context

Claude Fable 5

1M vs 128K tokens

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
Claude Fable 5Claude Fable 5: 1,503
Meta Llama 3.1 70B Instruct TurboMeta Llama 3.1 70B Instruct Turbo: 1,293
LMArena WebDevElo-style rating · LMArena (CC BY 4.0) · Oct 13, 2026
Claude Fable 5Claude Fable 5: 1,624
Meta Llama 3.1 70B Instruct TurboMeta Llama 3.1 70B Instruct Turbo: —
LMArena CodingElo-style rating · LMArena (CC BY 4.0) · Oct 15, 2026
Claude Fable 5Claude Fable 5: 1,551
Meta Llama 3.1 70B Instruct TurboMeta Llama 3.1 70B Instruct Turbo: 1,333
SWE-bench Verified% of issues resolved · SWE-bench · Jun 9, 2026 · reference
Claude Fable 5Claude Fable 5: 95%v
Meta Llama 3.1 70B Instruct TurboMeta Llama 3.1 70B Instruct Turbo: —
SWE-Bench Pro% of tasks resolved · Scale AI SWE-Bench Pro · Jun 9, 2026 · reference
Claude Fable 5Claude Fable 5: 80%v
Meta Llama 3.1 70B Instruct TurboMeta Llama 3.1 70B Instruct Turbo: —
Terminal-Bench 2.1% of tasks passed · Terminal-Bench · Jun 9, 2026 · reference
Claude Fable 5Claude Fable 5: 84.3%v
Meta Llama 3.1 70B Instruct TurboMeta Llama 3.1 70B Instruct Turbo: —

Claude Fable 5Meta Llama 3.1 70B Instruct Turbov = 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
Meta Llama 3.1 70B Instruct Turbo$96.00 /month

Meta Llama 3.1 70B Instruct Turbo saves you $3,904 a month at this usage, $46,848 a year.

At a glance

AttributeClaude Fable 5Meta Llama 3.1 70B Instruct Turbo
Made byAnthropicMeta
AvailabilityComing soonComing soon
Overall gradeExcellent · 90.7Good · 26.8
Overall rank#3 of 67#63 of 67
Input price$10.00 per 1M$0.40 per 1M
Output price$50.00 per 1M$0.40 per 1M
Context window1,000,000 tokens131,072 tokens
Reasoning levelsYesNo
Reads imagesYesNo
Model IDclaude-fable-5meta-llama-3.1-70b-instruct-turbo

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": "meta-llama-3.1-70b-instruct-turbo", "messages": [...]}'

Questions

Is Claude Fable 5 or Meta Llama 3.1 70B Instruct Turbo better?

Claude Fable 5 grades 90.7 against 26.8 for Meta Llama 3.1 70B Instruct Turbo, from public benchmarks.

Which is cheaper, Claude Fable 5 or Meta Llama 3.1 70B Instruct Turbo?

Meta Llama 3.1 70B Instruct Turbo: $0.40 in and $0.40 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.

Compare with others

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.