Changelog
What changed in the data, and when. Entries are generated from the ingests themselves — a new model appearing at a provider, a published price moving, a benchmark or arena refresh landing — so this is a record of what we observed, not a list of announcements.
All 175 of 175 entries
July 2026
Price change · 29 Jul 2026
Blended 3:1 price moved from $0.16 to $0.20 per 1M tokens (OpenRouter).
Arena update · 29 Jul 2026
Arena Elo refreshed: 1008 ratings across 7 arenas
image=73 image_edit=51 speech=42 text=379 text_sc=379 video=42 video_i2v=42
Model added · 29 Jul 2026
Discovered via gpqa-diamond, math-aime; no OpenRouter listing at ingest time.
Model added · 29 Jul 2026
Discovered via gpqa-diamond, math-aime; no OpenRouter listing at ingest time.
Model added · 29 Jul 2026
Discovered via gpqa-diamond, math-aime; no OpenRouter listing at ingest time.
Model added · 29 Jul 2026
Discovered via gpqa-diamond, math-aime; no OpenRouter listing at ingest time.
Model added · 29 Jul 2026
Discovered via gpqa-diamond, math-aime; no OpenRouter listing at ingest time.
Benchmark update · 29 Jul 2026
Epoch AI benchmark archive (CC-BY 4.0), including LiveBench results redistributed by Epoch AI. The Known Good aggregates published results; it runs no evaluations.
Price change · 29 Jul 2026
Blended 3:1 price moved from $0.22 to $0.26 per 1M tokens (OpenRouter).
Price change · 29 Jul 2026
Blended 3:1 price moved from $0.20 to $0.16 per 1M tokens (OpenRouter).
Price change · 29 Jul 2026
Blended 3:1 price moved from $0.31 to $0.36 per 1M tokens (OpenRouter).
Price change · 29 Jul 2026
Blended 3:1 price moved from $0.16 to $0.20 per 1M tokens (OpenRouter).
Price change · 28 Jul 2026
Blended 3:1 price moved from $0.36 to $0.32 per 1M tokens (OpenRouter).
Price change · 28 Jul 2026
Blended 3:1 price moved from $0.20 to $0.16 per 1M tokens (OpenRouter).
Price change · 28 Jul 2026
Blended 3:1 price moved from $1.87 to $2.34 per 1M tokens (OpenRouter).
Price change · 28 Jul 2026
Blended 3:1 price moved from $0.45 to $0.56 per 1M tokens (OpenRouter).
Price change · 28 Jul 2026
Blended 3:1 price moved from $0.51 to $0.68 per 1M tokens (OpenRouter).
Price change · 28 Jul 2026
Blended 3:1 price moved from $0.32 to $0.42 per 1M tokens (OpenRouter).
Price change · 28 Jul 2026
Blended 3:1 price moved from $0.07 to $0.11 per 1M tokens (OpenRouter).
Price change · 28 Jul 2026
Blended 3:1 price moved from $0.25 to $0.39 per 1M tokens (OpenRouter).
Price change · 28 Jul 2026
Blended 3:1 price moved from $0.13 to $0.20 per 1M tokens (OpenRouter).
Price change · 28 Jul 2026
Blended 3:1 price moved from $0.49 to $0.75 per 1M tokens (OpenRouter).
Price change · 28 Jul 2026
Blended 3:1 price moved from $0.39 to $0.60 per 1M tokens (OpenRouter).
Price change · 28 Jul 2026
Blended 3:1 price moved from $0.25 to $0.39 per 1M tokens (OpenRouter).
Price change · 28 Jul 2026
Blended 3:1 price moved from $0.27 to $0.41 per 1M tokens (OpenRouter).
Price change · 28 Jul 2026
Blended 3:1 price moved from $0.25 to $0.39 per 1M tokens (OpenRouter).
Price change · 28 Jul 2026
Blended 3:1 price moved from $0.84 to $1.30 per 1M tokens (OpenRouter).
Price change · 28 Jul 2026
Blended 3:1 price moved from $1.01 to $1.56 per 1M tokens (OpenRouter).
Price change · 28 Jul 2026
Blended 3:1 price moved from $0.84 to $1.30 per 1M tokens (OpenRouter).
Price change · 28 Jul 2026
Blended 3:1 price moved from $0.49 to $0.75 per 1M tokens (OpenRouter).
Price change · 28 Jul 2026
Blended 3:1 price moved from $0.13 to $0.20 per 1M tokens (OpenRouter).
Price change · 28 Jul 2026
Blended 3:1 price moved from $0.43 to $0.66 per 1M tokens (OpenRouter).
Price change · 28 Jul 2026
Blended 3:1 price moved from $0.12 to $0.18 per 1M tokens (OpenRouter).
Price change · 28 Jul 2026
Blended 3:1 price moved from $1.01 to $1.56 per 1M tokens (OpenRouter).
Price change · 28 Jul 2026
Blended 3:1 price moved from $0.57 to $0.88 per 1M tokens (OpenRouter).
Price change · 28 Jul 2026
Blended 3:1 price moved from $0.38 to $0.58 per 1M tokens (OpenRouter).
Price change · 28 Jul 2026
Blended 3:1 price moved from $0.46 to $0.72 per 1M tokens (OpenRouter).
Price change · 28 Jul 2026
Blended 3:1 price moved from $0.52 to $0.80 per 1M tokens (OpenRouter).
Price change · 28 Jul 2026
Blended 3:1 price moved from $0.26 to $0.40 per 1M tokens (OpenRouter).
Price change · 28 Jul 2026
Blended 3:1 price moved from $0.48 to $0.73 per 1M tokens (OpenRouter).
Price change · 28 Jul 2026
Blended 3:1 price moved from $0.35 to $0.54 per 1M tokens (OpenRouter).
Price change · 28 Jul 2026
Blended 3:1 price moved from $1.11 to $1.88 per 1M tokens (OpenRouter).
Price change · 28 Jul 2026
Blended 3:1 price moved from $2.34 to $1.87 per 1M tokens (OpenRouter).
Price change · 28 Jul 2026
Blended 3:1 price moved from $0.56 to $0.45 per 1M tokens (OpenRouter).
Price change · 28 Jul 2026
Blended 3:1 price moved from $0.68 to $0.51 per 1M tokens (OpenRouter).
Price change · 28 Jul 2026
Blended 3:1 price moved from $0.42 to $0.32 per 1M tokens (OpenRouter).
Price change · 28 Jul 2026
Blended 3:1 price moved from $0.11 to $0.07 per 1M tokens (OpenRouter).
Price change · 28 Jul 2026
Blended 3:1 price moved from $0.39 to $0.25 per 1M tokens (OpenRouter).
Price change · 28 Jul 2026
Blended 3:1 price moved from $0.20 to $0.13 per 1M tokens (OpenRouter).
Price change · 28 Jul 2026
Blended 3:1 price moved from $0.39 to $0.25 per 1M tokens (OpenRouter).
Price change · 28 Jul 2026
Blended 3:1 price moved from $0.39 to $0.25 per 1M tokens (OpenRouter).
Price change · 28 Jul 2026
Blended 3:1 price moved from $1.30 to $0.84 per 1M tokens (OpenRouter).
Price change · 28 Jul 2026
Blended 3:1 price moved from $1.56 to $1.01 per 1M tokens (OpenRouter).
Price change · 28 Jul 2026
Blended 3:1 price moved from $0.20 to $0.13 per 1M tokens (OpenRouter).
Price change · 28 Jul 2026
Blended 3:1 price moved from $0.18 to $0.12 per 1M tokens (OpenRouter).
Price change · 28 Jul 2026
Blended 3:1 price moved from $1.56 to $1.01 per 1M tokens (OpenRouter).
Price change · 28 Jul 2026
Blended 3:1 price moved from $0.88 to $0.57 per 1M tokens (OpenRouter).
Price change · 28 Jul 2026
Blended 3:1 price moved from $0.58 to $0.38 per 1M tokens (OpenRouter).
Price change · 28 Jul 2026
Blended 3:1 price moved from $0.72 to $0.46 per 1M tokens (OpenRouter).
Price change · 28 Jul 2026
Blended 3:1 price moved from $0.80 to $0.52 per 1M tokens (OpenRouter).
Price change · 28 Jul 2026
Blended 3:1 price moved from $0.40 to $0.26 per 1M tokens (OpenRouter).
Price change · 28 Jul 2026
Blended 3:1 price moved from $0.73 to $0.48 per 1M tokens (OpenRouter).
Price change · 28 Jul 2026
Blended 3:1 price moved from $0.54 to $0.35 per 1M tokens (OpenRouter).
Price change · 28 Jul 2026
Blended 3:1 price moved from $2.21 to $1.11 per 1M tokens (OpenRouter).
Model added · 28 Jul 2026
MiniMax · 524,288 token context · $0.26 per 1M blended (3:1)
Price change · 28 Jul 2026
Blended 3:1 price moved from $0.24 to $0.22 per 1M tokens (OpenRouter).
Model added · 28 Jul 2026
Google · 1,048,576 token context · $1.72 per 1M blended (3:1)
Model added · 28 Jul 2026
Google · 1,048,576 token context · $0.42 per 1M blended (3:1)
Model added · 28 Jul 2026
Google · 1,048,576 token context · $0.09 per 1M blended (3:1)
Model added · 28 Jul 2026
Anthropic · 200,000 token context · $15 per 1M blended (3:1)
Model added · 28 Jul 2026
OpenAI · 400,000 token context · $0.34 per 1M blended (3:1)
Model added · 28 Jul 2026
Anthropic · 1,000,000 token context · $3 per 1M blended (3:1)
Model added · 28 Jul 2026
OpenAI · 400,000 token context · $1.72 per 1M blended (3:1)
Model added · 28 Jul 2026
Anthropic · 200,000 token context · $5 per 1M blended (3:1)
Model added · 28 Jul 2026
OpenAI · 400,000 token context · $2.41 per 1M blended (3:1)
Model added · 28 Jul 2026
Google · 1,048,576 token context · $0.56 per 1M blended (3:1)
Model added · 28 Jul 2026
Anthropic · 1,000,000 token context · $5 per 1M blended (3:1)
Model added · 28 Jul 2026
Google · 1,048,576 token context · $2.25 per 1M blended (3:1)
Model added · 28 Jul 2026
Anthropic · 1,000,000 token context · $5 per 1M blended (3:1)
Model added · 28 Jul 2026
Google · 1,048,576 token context · $0.28 per 1M blended (3:1)
Model added · 28 Jul 2026
Google · 1,048,576 token context · $1.69 per 1M blended (3:1)
Model added · 28 Jul 2026
Google · 1,048,576 token context · $0.42 per 1M blended (3:1)
Model added · 28 Jul 2026
Google · 1,048,576 token context · $1.50 per 1M blended (3:1)
Model added · 28 Jul 2026
Anthropic · 1,000,000 token context · $5 per 1M blended (3:1)
Price change · 28 Jul 2026
Blended 3:1 price moved from $0.22 to $0.24 per 1M tokens (OpenRouter).
Model added · 28 Jul 2026
OpenAI · 400,000 token context · $0.07 per 1M blended (3:1)
Model added · 28 Jul 2026
OpenAI · 400,000 token context · $1.72 per 1M blended (3:1)
Model added · 28 Jul 2026
Anthropic · 200,000 token context · $1 per 1M blended (3:1)
Model added · 28 Jul 2026
OpenAI · 1,050,000 token context · $2.81 per 1M blended (3:1)
Model added · 28 Jul 2026
OpenAI · 400,000 token context · $0.84 per 1M blended (3:1)
Model added · 28 Jul 2026
OpenAI · 400,000 token context · $0.23 per 1M blended (3:1)
Model added · 28 Jul 2026
OpenAI · 1,050,000 token context · $5.62 per 1M blended (3:1)
Model added · 28 Jul 2026
Anthropic · 1,000,000 token context · $5 per 1M blended (3:1)
Model added · 28 Jul 2026
Anthropic · 1,000,000 token context · $10 per 1M blended (3:1)
Model added · 28 Jul 2026
Anthropic · 1,000,000 token context · $2 per 1M blended (3:1)
Price change · 28 Jul 2026
Blended 3:1 price moved from $0.21 to $0.22 per 1M tokens (OpenRouter).
Price change · 28 Jul 2026
Blended 3:1 price moved from $0.28 to $0.36 per 1M tokens (OpenRouter).
Price change · 28 Jul 2026
Blended 3:1 price moved from $1.35 to $0.92 per 1M tokens (OpenRouter).
Price change · 28 Jul 2026
Blended 3:1 price moved from $0.14 to $0.21 per 1M tokens (OpenRouter).
Price change · 28 Jul 2026
Blended 3:1 price moved from $1.11 to $1.18 per 1M tokens (OpenRouter).
Price change · 28 Jul 2026
Blended 3:1 price moved from $0.21 to $0.14 per 1M tokens (OpenRouter).
Model added · 28 Jul 2026
Model added · 28 Jul 2026
Model added · 28 Jul 2026
Model added · 28 Jul 2026
Arena update · 28 Jul 2026
Arena Elo refreshed: 1008 ratings across 7 arenas
image=73 image_edit=51 speech=42 text=379 text_sc=379 video=42 video_i2v=42
Benchmark update · 28 Jul 2026
Epoch AI benchmark archive (CC-BY 4.0), including LiveBench results redistributed by Epoch AI. The Known Good aggregates published results; it runs no evaluations.
Benchmark update · 28 Jul 2026
The Known Good Index only scores a model that holds at least one science, one mathematics and one coding result, so that a model measured in a single area never looks ranked overall. Mathematics meant Mock AIME 2024–25 and nothing else; it now means Mock AIME 2024–25 or MATH Level 5. MATH Level 5 has been a component of the composite since v1.3, so it could already raise or lower a score while being unable to help any model qualify — an inconsistency rather than a judgement. This changes who is scored, not what anyone scores: the component set is unchanged, there is no version bump, and every model already carrying an index keeps its exact value. One model joins the scored population, Gemini 2.0 Pro Experimental at 73.46, ranking 26th of 62. No model loses its score. We aggregate published results and do not run these evaluations.
Benchmark update · 28 Jul 2026
Epoch AI benchmark archive (CC-BY 4.0), including LiveBench results redistributed by Epoch AI. The Known Good aggregates published results; it runs no evaluations.
Price change · 28 Jul 2026
Blended 3:1 price moved from $0.92 to $1.35 per 1M tokens (OpenRouter).
Model added · 28 Jul 2026
Alibaba · 1,000,000 token context · $0.06 per 1M blended (3:1)
Benchmark update · 28 Jul 2026
Known Good Index v1.3 — MATH Level 5 joins the composite
The composite goes from six components to seven. MATH Level 5 — the hardest tier of the MATH dataset, published by Epoch AI under CC-BY — joins GPQA Diamond, Mock AIME 2024–25, SWE-bench Verified, LiveBench, Humanity's Last Exam and Terminal-Bench. It was added because it is genuinely new evidence rather than the same evidence at finer grain: it is a distinct dataset from Mock AIME, not a subset of it. Published scores moved. Across the 61 scored models the median change was 2.28 points, the 90th percentile 8.77, and the largest 10.51 (Claude Haiku 4.5). Five models moved five or more places in the ranking. No model gained or lost eligibility: qualification still requires one science, one mathematics and one coding result, unchanged. Mean components per scored model rose from 3.57 to 4.15. The Science Index was retired in the same change — it had a single component, so it was GPQA Diamond rescaled; GPQA Diamond is now shown directly. We aggregate published results and do not run these evaluations.
Price change · 27 Jul 2026
Blended 3:1 price moved from $5.62 to $2.81 per 1M tokens (OpenRouter).
Price change · 27 Jul 2026
Blended 3:1 price moved from $5.62 to $2.81 per 1M tokens (OpenRouter).
Price change · 27 Jul 2026
Blended 3:1 price moved from $2.25 to $1.12 per 1M tokens (OpenRouter).
Price change · 27 Jul 2026
Blended 3:1 price moved from $2.25 to $1.12 per 1M tokens (OpenRouter).
Price change · 27 Jul 2026
Blended 3:1 price moved from $6 to $0 per 1M tokens (OpenRouter).
Price change · 27 Jul 2026
Blended 3:1 price moved from $0.18 to $0.21 per 1M tokens (OpenRouter).
Price change · 27 Jul 2026
Blended 3:1 price moved from $0.14 to $0.18 per 1M tokens (OpenRouter).
Price change · 27 Jul 2026
Blended 3:1 price moved from $0.18 to $0.14 per 1M tokens (OpenRouter).
Price change · 27 Jul 2026
Blended 3:1 price moved from $1.35 to $0.92 per 1M tokens (OpenRouter).
Price change · 27 Jul 2026
Blended 3:1 price moved from $1.03 to $1.27 per 1M tokens (OpenRouter).
Arena update · 27 Jul 2026
Arena Elo refreshed: 1002 ratings across 7 arenas
image=73 image_edit=51 speech=42 text=376 text_sc=376 video=42 video_i2v=42
Benchmark update · 27 Jul 2026
Epoch AI benchmark archive (CC-BY 4.0), including LiveBench results redistributed by Epoch AI. The Known Good aggregates published results; it runs no evaluations.
Price change · 26 Jul 2026
Blended 3:1 price moved from $0.23 to $0.22 per 1M tokens (OpenRouter).
Arena update · 26 Jul 2026
Arena Elo refreshed: 1002 ratings across 7 arenas
image=73 image_edit=51 speech=42 text=376 text_sc=376 video=42 video_i2v=42
Benchmark update · 26 Jul 2026
Epoch AI benchmark archive (CC-BY 4.0), including LiveBench results redistributed by Epoch AI. The Known Good aggregates published results; it runs no evaluations.
Price change · 26 Jul 2026
Blended 3:1 price moved from $0.82 to $0.72 per 1M tokens (OpenRouter).
Price change · 26 Jul 2026
Blended 3:1 price moved from $0.12 to $0.18 per 1M tokens (OpenRouter).
Price change · 25 Jul 2026
Blended 3:1 price moved from $0.15 to $0.08 per 1M tokens (OpenRouter).
Arena update · 25 Jul 2026
Arena Elo refreshed: 1002 ratings across 7 arenas
image=73 image_edit=51 speech=42 text=376 text_sc=376 video=42 video_i2v=42
Arena update · 25 Jul 2026
Arena Elo refreshed: 1002 ratings across 7 arenas
image=73 image_edit=51 speech=42 text=376 text_sc=376 video=42 video_i2v=42
Benchmark update · 25 Jul 2026
Epoch AI benchmark archive (CC-BY 4.0), including LiveBench results redistributed by Epoch AI. The Known Good aggregates published results; it runs no evaluations.
Price change · 25 Jul 2026
Blended 3:1 price moved from $1.37 to $1.16 per 1M tokens (OpenRouter).
Arena update · 25 Jul 2026
Arena Elo refreshed: 1002 ratings across 7 arenas
image=73 image_edit=51 speech=42 text=376 text_sc=376 video=42 video_i2v=42
Benchmark update · 25 Jul 2026
Epoch AI benchmark archive (CC-BY 4.0), including LiveBench results redistributed by Epoch AI. The Known Good aggregates published results; it runs no evaluations.
Model added · 25 Jul 2026
Model added · 25 Jul 2026
Arena update · 25 Jul 2026
Arena Elo refreshed: 1002 ratings across 7 arenas
image=73 image_edit=51 speech=42 text=376 text_sc=376 video=42 video_i2v=42
Benchmark update · 25 Jul 2026
Epoch AI benchmark archive (CC-BY 4.0), including LiveBench results redistributed by Epoch AI. The Known Good aggregates published results; it runs no evaluations.
Model added · 25 Jul 2026
Model added · 25 Jul 2026
Model added · 25 Jul 2026
Model added · 25 Jul 2026
Model added · 25 Jul 2026
Model added · 25 Jul 2026
Model added · 25 Jul 2026
Model added · 25 Jul 2026
Model added · 25 Jul 2026
Model added · 25 Jul 2026
New model seen in arena leaderboards: glm-5.2 (max)
Arena update · 25 Jul 2026
Arena Elo refreshed: 1004 ratings across 7 arenas
image=73 image_edit=51 speech=42 text=377 text_sc=377 video=42 video_i2v=42
Model added · 25 Jul 2026
Model added · 25 Jul 2026
Model added · 25 Jul 2026
New model seen in arena leaderboards: claude-fable-5
Model added · 25 Jul 2026
Model added · 25 Jul 2026
Model added · 25 Jul 2026
Model added · 25 Jul 2026
Model added · 25 Jul 2026
Model added · 25 Jul 2026
Model added · 25 Jul 2026
Model added · 25 Jul 2026
Model added · 25 Jul 2026
Model added · 25 Jul 2026
Model added · 25 Jul 2026
Model added · 25 Jul 2026
Model added · 25 Jul 2026
Model added · 25 Jul 2026
Model added · 25 Jul 2026
Model added · 25 Jul 2026
Model added · 25 Jul 2026
Arena update · 25 Jul 2026
Arena Elo refreshed: 1004 ratings across 7 arenas
image=73 image_edit=51 speech=42 text=377 text_sc=377 video=42 video_i2v=42
Model added · 25 Jul 2026
See ingest_run note for the full list.
Benchmark update · 25 Jul 2026
Epoch AI benchmark archive (CC-BY 4.0), including LiveBench results redistributed by Epoch AI. The Known Good aggregates published results; it runs no evaluations.
What lands here. New models are recorded when a source first offers one — OpenRouter usually sees them
first, so a model can appear here with sparse metadata and fill in later. Price moves are recorded against published
rates. Benchmark and arena entries record that a publisher's refresh was ingested, never that we ran anything.
A run that failed its sanity check is not shown as a change, because it never touched the live data — those
are on the freshness table instead.