Mercury 2
Mercury 2Alternatives?
CheaperClaude Haiku 5.5low+12.6-37%$0.024Remove sampling parameters+5
BetterGPT-6 Lunamedium+2.5-55%$0.017Function calling only with none · Chat Completions+3
OpenGLM 5.3max+41.9+5,092%$2.01Reasoning cannot be disabled+3CheaperGPT-5.6 Lunanon-thinking+1-74%$0.01
CheaperGranite 4.2 3BthinkingOpensame-85%$0.006Claude Haiku 5.5low+12.6-37%$0.024Remove sampling parameters+5GPT-6 Lunahigh+4.5-25%$0.029Function calling only with none · Chat Completions+3GPT-5.6 Lunanon-thinking+1-74%$0.01Granite 4.2 3BthinkingOpensame-85%$0.006
Ministral 3 3B 2512Opensame-80%$0.008GPT-6 Lunamedium+2.5-55%$0.017Function calling only with none · Chat Completions+3Claude Haiku 5.5low+12.6-37%$0.024Remove sampling parameters+5GPT-5.6 Lunahigh+2.5+14%$0.044
MiMo v2.6 FlashthinkingOpen+22.7+61%$0.062Pass back reasoning_content+3GPT-6.1 Sollow+30.8+238%$0.13Remove unsupported parameters+5GLM 5.3maxOpen+41.9+5,092%$2.01Reasoning cannot be disabled+3MiMo v2.6 ProthinkingOpen+34.8+245%$0.13Pass back reasoning_content+3
DeepSeek V4.1 Flash 1017maxOpen+33.8+578%$0.26Pass back reasoning_content · Chat Completions+4
Ling 3.1 FlashOpen+33.3+2,488%$1.00
Step 5 PreviewthinkingOpen+33.3+2,557%$1.03web_search not available · Chat Completions+2History
2 versionsFAQ
How much does Mercury 2 cost?›
$0.25 per 1M input tokens and $0.75 per 1M output tokens; cached input $0.025 per 1M. A typical benchmark task costs about $0.039 at high effort.
Is Mercury 2 free to use?›
There is no free API; the cheapest paid price is $0.25 per 1M input tokens.
How good is Mercury 2, and what is it best at?›
#135 of 334 in Chat & Knowledge, #75 of 132 in Coding, #102 of 133 in Agents & Tool Use, #134 of 195 in Writing & Language, #94 of 133 in Vision & Documents. Strongest at: Instructions.
Is Mercury 2 better than Granite 4.2 8B?›
On Terminal-Bench 4.0, Mercury 2 scores 0 vs 0 — about the same. It is 64% more expensive per task.
How can I use Mercury 2?›
Through the API of Inception.
What is the context window of Mercury 2?›
128K tokens, with up to 50K output tokens.
When was Mercury 2 released? Is there a newer version?›
Released 2026-02-20. It has been superseded by Mercury 2.5.
Is Mercury 2 open source?›
No, Mercury 2 is a closed model available through an API. The closest open-weights option here is GLM 5.3.
Can Mercury 2 read images?›
No, it accepts text only.
What is Mercury 2?›
Mercury 2 is a closed language model from inception, released Feb 2026.
What are the best alternatives to Mercury 2?›
Claude Haiku 5.5 (cheaper), GPT-6 Luna (better), GLM 5.3 (open weights).