Claude Fable 5$22.000/MClaude Opus 4.8$11.000/MClaude Opus 4.7$11.000/MClaude Opus 4.6$11.000/MClaude Opus 4.5$33.000/MClaude Sonnet 3.7$6.600/MClaude Opus 3$33.000/MClaude 2.1$12.800/MClaude 2$12.800/MGPT-5.5$12.500/MGPT-5.2$5.425/MGPT-5.2-Codex$5.425/MGPT-5$3.875/MGPT-4.5$97.500/MGPT-4 Turbo Preview$16.000/MGPT-4$39.000/MGPT-4-32k$78.000/Mo3$19.000/Mo3-mini$2.090/Mo4-mini$2.090/Mo1$28.500/Mo1-mini$5.700/Mo1-preview$28.500/MGemini 3.5 Pro$5.000/MGemini 3.1 Pro$5.000/MGemini 3 Pro$5.000/MGemini 2.5 Pro$3.875/MGemini 1.5 Pro$2.375/MGemini 1.0 Ultra$12.000/MGemini 1.0 Pro$0.800/MClaude Fable 5$22.000/MClaude Opus 4.8$11.000/MClaude Opus 4.7$11.000/MClaude Opus 4.6$11.000/MClaude Opus 4.5$33.000/MClaude Sonnet 3.7$6.600/MClaude Opus 3$33.000/MClaude 2.1$12.800/MClaude 2$12.800/MGPT-5.5$12.500/MGPT-5.2$5.425/MGPT-5.2-Codex$5.425/MGPT-5$3.875/MGPT-4.5$97.500/MGPT-4 Turbo Preview$16.000/MGPT-4$39.000/MGPT-4-32k$78.000/Mo3$19.000/Mo3-mini$2.090/Mo4-mini$2.090/Mo1$28.500/Mo1-mini$5.700/Mo1-preview$28.500/MGemini 3.5 Pro$5.000/MGemini 3.1 Pro$5.000/MGemini 3 Pro$5.000/MGemini 2.5 Pro$3.875/MGemini 1.5 Pro$2.375/MGemini 1.0 Ultra$12.000/MGemini 1.0 Pro$0.800/M
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Yi-34B (fw)

Open

Open-weights Yi-34B fine-tuned for chat. The model that put 01.AI on the open-weights map in 2023.

Yi-34B (fw) is a frontier AI model from Fireworks AI. It costs $0.900 per million input tokens and $0.900 per million output tokens (blended $0.900/M), with a 4K-token context window.

Profile inherited from upstream Yi-34B ↗ — this is a hosted variant of the same open-weights model.

Released Nov 2023Modalities textOfficial model page ↗Provider pricing ↗API docs ↗Compare with another model →Estimate monthly cost →
INPUT
$0.900/M
per million input tokens
OUTPUT
$0.900/M
per million output tokens
BLENDED 70/30
$0.900/M
default reference rate · how it's calculated →
CONTEXT
4K
4,000 tokens
What it's good at
  • Open weights
  • Bilingual EN/ZH
  • 32K context
Typical use cases
  • Self-hosted bilingual chat
  • Fine-tune base
Benchmarks
vs. best public score
Scores inherited from Yi-34B — this is a hosted variant of the same open-weights model, so the underlying benchmark scores are identical.
MMLU73%
Multitask academic knowledge across 57 subjects.
HumanEval56%
Python function synthesis from docstrings.
Hand-curated from each provider's published reports and public leaderboards. Methodology varies across sources — treat as directional rather than authoritative.
More from Fireworks AI
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Llama 3.1 405B (fw)
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in $3.000/Mout $3.000/M
Mixtral 8x7B (fw)
Serverless · 32K ctx
in $0.200/Mout $0.200/M
DeepSeek-R1 (fw)
Reasoning · 64K ctx
in $3.000/Mout $8.000/M
Qwen2.5-72B (fw)
Balanced · 32K ctx
in $0.900/Mout $0.900/M
Llama 3.1 8B (fw)
Nano · 131K ctx
in $0.100/Mout $0.100/M
Phind-CodeLlama-34B (fw)
Code · 16K ctx
in $0.800/Mout $0.800/M
Frequently asked questions

How much does Yi-34B (fw) cost?

Yi-34B (fw) costs $0.900 per million input tokens and $0.900 per million output tokens, for a blended reference rate of $0.900 per million tokens.

What is Yi-34B (fw)'s context window?

Yi-34B (fw) supports up to 4K tokens of context (4,000 tokens).

What is Yi-34B (fw) best for?

Yi-34B (fw) is well suited to Open weights, Bilingual EN/ZH and 32K context.

Who makes Yi-34B (fw)?

Yi-34B (fw) is developed and served by Fireworks AI. It was released in Nov 2023.