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Gemini 4 Hydrogen vs Gemini 4 Argon
Of the 4 public leaderboards that rate both, Gemini 4 Hydrogen scores higher on 2 and Gemini 4 Argon on 2. On the ArtificialWatch Index, which takes the median of each model's percentile across the boards that score it, Gemini 4 Hydrogen is at 81.9 and Gemini 4 Argon at 78.4 (out of 100). On each maker's API, Gemini 4 Hydrogen costs $1.50 / $7.50 per 1M tokens (input / output) and Gemini 4 Argon $2 / $10.
Scores as published by each board; table composed November 13, 2026.
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Leaderboard by leaderboard
| Board | Gemini 4 Hydrogen | Gemini 4 Argon | Higher |
|---|---|---|---|
| LMArena Elo (community votes) | 1,704.2 | 1,681 | Gemini 4 Hydrogen |
| LiveBench global average (0-100) | 77 | 77.7 | Gemini 4 Argon |
| Vals AI Vals Index accuracy % · weighted finance + coding tasks | 68.5 | 69.4 | Gemini 4 Argon |
| Artificial Analysis intelligence index · measured runs only | 53.9 | 50.4 | Gemini 4 Hydrogen |
Raw scores are each board's own scale, so compare within a row, not across rows. Full table: the bench index.
For coding
On the ArtificialWatch coding index, Gemini 4 Hydrogen is at 76 (#10 of 48) and Gemini 4 Argon at 95.3 (#2). Gemini 4 Argon scores higher on all 3 coding boards that rate both.
| Coding board | Gemini 4 Hydrogen | Gemini 4 Argon |
|---|---|---|
| LMArena · Coding | 1,515.9 | 1,540.2 |
| LiveBench · Coding | 78.5 | 85.7 |
| Vals Vibe Code Bench | 87.8 | 91.9 |
Gemini 4 Hydrogen at a glance
- Developer
- Status
- Live since November 12, 2026
- API price
- $1.50 input / $7.50 output per 1M tokens · Google, gemini-4-hydrogen
- Context window
- 1.05M tokens
Live — Nov 12 · GA on the Gemini API as gemini-4-hydrogen (Google's release notes, Nov 12), free tier and paid tier, also in Google AI Studio and the default model for the Antigravity agent in Gemini Managed Agents · $1.50 / $7.50 per 1M, $0.075 cached (implicit caching only); Batch and Flex $0.75 / $3.75; Priority $2.70 / $13.50 · no introductory discount: the same as the SKU rows Google Cloud listed at 08:50 UTC · 1M unified context; 65,536 max output by default, up to 1M with long decode · text, image, video, audio and PDF in, text out · thinking levels low, medium, high (default) and a new xhigh · Google calls Gemini 3.8 Flash its 'previous-generation Flash model' ($0.75 / $3.75 intro through Dec 31, $1.50 / $7.50 from Jan 1) · our sweep fired at 17:46 UTC · before launch: codename reported since Oct 27, Business Insider (Nov 11) on staff testing, billing SKUs Nov 12 08:50 UTC · Nov 12 18:50 UTC: 54 on Artificial Analysis' Intelligence Index (Gemini 4 Hydrogen (Xhigh)), above Gemini 4 Argon (50) and GPT-6.1 Terra (51), one point under Claude Sonnet 5.5 (55); 54.3% on CursorBench at High, 12th of its listed settings.
Gemini 4 Hydrogen is live: Google's new everyday model costs $1.50 / $7.50 per 1M tokens, with a free tier and a 1M context
2026-11-12 · Google released Gemini 4 Hydrogen (gemini-4-hydrogen) on November 12 as generally available on the Gemini API, on the free tier and at $1.50 per 1M input tokens and $7.50 per 1M output tokens on the paid tier.
Gemini 4 Hydrogen appears in Google Cloud's price list at $1.50 input and $7.50 output per 1M tokens, before Google has announced it
2026-11-12 · Google Cloud's public SKU list now carries Gemini 4 Hydrogen under two services, the Gemini API and Vertex AI, before Google has announced the model. @Mr_Salio flagged the rows at 08:11 UTC on November 12, and ArtificialWatch read them on Google's SKU list at 08:50 UTC.
Gemini 4 Argon at a glance
- Developer
- Status
- Live since October 13, 2026
- API price
- $2 input / $10 output per 1M tokens · Google, gemini-4-argon
- Context window
- 1.05M tokens
Live — Oct 13 · GA as gemini-4-argon on the Gemini API (Google changelog), also in AI Studio, Vertex AI, the Gemini app and Antigravity · $2 / $10 per 1M through Nov 30, 2026, then $4 / $20 from Dec 1; cached input $0.10, then $0.20 (implicit caching only) · Batch and Flex half price, Priority $3.60 / $18 · on the API, Google's pricing page says it is not on the Free tier or on the Google AI Pro plan; the consumer Google AI Pro and Ultra subscriptions do include it in the Gemini app (gemini.google, read Oct 15) and in Antigravity's desktop app and CLI since Oct 13 (Google's Antigravity blog), where a screenshot @LuminaBench posted Oct 15 shows a separate weekly Argon limit · 1,048,576-token context shared by input and output; 65,536 max output by default, up to 1,048,576 with long decode · thinking low / medium / high · knowledge cutoff March 2026 (model card) · Google's own table: ahead of Claude Opus 5.5 on 14 of 18 shared rows, behind on FrontierSWE v2 (55.0 vs 62.3), Terminal-Bench 4.0 (57.4 vs 66.4), PostTrainBench and Terminal-Bench Science · Artificial Analysis Intelligence Index (read Oct 13): 52.6 at high, level with GPT-6 Astra (52.7), behind Opus 5.5 (57.6), Sonnet 5.5 (56.0), Muse Wonder Full (55.8) and Fable 5.1 (53.4) · #1 on the Vals Index (68.9%) · ARC Prize, verified (read Oct 15): ARC-AGI-3 97.5% through the provider adapter harness and 49.8% on the standard harness, ARC-AGI-2 91.3% ($0.32 a task), ARC-AGI-1 98.5% · Epoch Capabilities Index (read Oct 15): 164.6, fifth, behind Opus 5.5 (166.8), GPT-6 Astra (166.4), GPT-6.1 Sol (166.3) and Fable 5.1 (164.7), with overlapping confidence intervals · our sweep fired at 15:45 UTC · announced Sep 30 for Fairwind trusted testers first · the newer Gemini 4 checkpoints Business Insider reported Oct 9 file under their own hunts: Carbon (announced Oct 28, gemini-4-carbon) and Barium (gemini-4-next) · Cognition FrontierCode 2.0 (read Oct 30): 26.3% at high in Devin CLI, twelfth of 26, $6.51 a task.
Google doubles seven Gemini API prices: Gemini 4 Argon reaches Claude Opus 5.5's $4 / $20 on December 1, and Gemini 3.8 Flash goes to $1.50 / $7.50 on January 1
2026-11-06 · Google's own pricing pages date a doubling for seven Gemini models, starting with Gemini 4 Argon, which goes from $2 / $10 to $4 / $20 per million input and output tokens on December 1, the same list price as Claude Opus 5.5. Opus 5.5 is first on ArtificialWatch's bench index; Argon is seventh.
Gemini 4 Argon scores 97.5% on ARC-AGI-3 through a provider adapter, 49.8% on the standard harness
2026-10-15 · ARC Prize has published verified scores for Gemini 4 Argon, and on ARC-AGI-3 there are two very different numbers. Run through what ARC Prize calls the provider adapter harness, Argon scores 97.5% at low effort. On ARC Prize's standard harness it scores 49.8%.
Gemini 4 Hydrogen vs Gemini 4 Argon: quick answers
Which is better, Gemini 4 Hydrogen or Gemini 4 Argon?
It depends on what you measure. Of the 4 public leaderboards that rate both, Gemini 4 Hydrogen scores higher on 2 and Gemini 4 Argon on 2. Gemini 4 Hydrogen's widest lead is on Artificial Analysis; Gemini 4 Argon's widest lead is on LiveBench. On the ArtificialWatch Index, which takes the median of each model's percentile across the boards that score it, Gemini 4 Hydrogen is at 81.9 and Gemini 4 Argon at 78.4 (out of 100).
Which is newer, Gemini 4 Hydrogen or Gemini 4 Argon?
Gemini 4 Hydrogen. It went live on November 12, 2026, 30 days after Gemini 4 Argon (October 13, 2026).
Which is cheaper, Gemini 4 Hydrogen or Gemini 4 Argon?
Gemini 4 Hydrogen is cheaper on both input and output. On each vendor's own API, Gemini 4 Hydrogen is $1.50 input / $7.50 output per million tokens and Gemini 4 Argon is $2 input / $10 output per million tokens. Prices as published in the models.dev catalog, as of 2026-11-12.
Which has the bigger context window, Gemini 4 Hydrogen or Gemini 4 Argon?
Neither. Both take 1.05M tokens.
How do Gemini 4 Hydrogen and Gemini 4 Argon compare for coding?
On the ArtificialWatch coding index, Gemini 4 Hydrogen is at 76 (#10 of 48) and Gemini 4 Argon at 95.3 (#2). Gemini 4 Argon scores higher on all 3 coding boards that rate both.
Who makes Gemini 4 Hydrogen and Gemini 4 Argon?
Both are from Google.
Where do these numbers come from?
Each score is the leaderboard's own published figure, read by ArtificialWatch (table composed November 13, 2026). Boards measure different things, so raw scores are only comparable within a row.
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