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
BETA
Subscribe
← Back to Index·All Fireworks AI models
Fireworks AI
Fireworks AIEfficientAUTO PROFILELIVE INDEX

Mercury 2

text->text

Mercury 2 is a general-purpose chat-tuned model. Available via Fireworks AI. 128K-token context. Efficient pricing.

Mercury 2 is a efficient AI model from Fireworks AI. It costs $0.250 per million input tokens and $0.750 per million output tokens (blended $0.400/M), with a 128K-token context window.

Modalities textProvider pricing ↗API docs ↗Pricing source ↗Compare with another model →Estimate monthly cost →
INPUT
$0.250/M
per million input tokens
OUTPUT
$0.750/M
per million output tokens
BLENDED 70/30
$0.400/M
default reference rate · how it's calculated →
CONTEXT
128K
128,000 tokens
What it's good at
  • Solid general chat performance
  • Reasonable instruction following
Typical use cases
  • General chat
  • Drafting and rewriting
  • Personal productivity
Benchmarks
No published benchmark scores tracked for this model yet. Frontier and reasoning models from major providers have scores; smaller models and inference-host variants typically inherit the underlying open-weights score.
More from Fireworks AI
See all 7 →
Llama 3.1 405B (fw)
Serverless · 131K ctx
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
Yi-34B (fw)
Open · 4K ctx
in $0.900/Mout $0.900/M
Frequently asked questions

How much does Mercury 2 cost?

Mercury 2 costs $0.250 per million input tokens and $0.750 per million output tokens, for a blended reference rate of $0.400 per million tokens.

What is Mercury 2's context window?

Mercury 2 supports up to 128K tokens of context (128,000 tokens).

What is Mercury 2 best for?

Mercury 2 is well suited to Solid general chat performance, Reasonable instruction following and General chat.

Who makes Mercury 2?

Mercury 2 is developed and served by Fireworks AI.