Changelog
Updates to the AI Frontier Model Tracker - new models, data corrections, benchmark additions, and feature changes.
July 18, 2026
Kimi K3 (Moonshot AI)
- Added Kimi K3 (Moonshot AI, July 16) - a 2.8T-parameter open-weight multimodal reasoning MoE (896 experts, 16 active per token) built on Kimi Delta Attention, with 1M context. Independent testing ranks it #4 among all frontier models, behind only Claude Fable 5 and GPT-5.6 Sol and ahead of Opus 4.8; debuted #1 on LMArena's Frontend Code Arena (1679 Elo). $3/$15 per 1M tokens; full open weights due July 27.
- Watch: Gemini 3.5 Pro still unreleased - missed its July 17 target (a third slip), with no model card or official pricing yet.
- 89 models across 19 providers
July 16, 2026
Inkling (Thinking Machines Lab)
- Added Inkling (Thinking Machines Lab, July 15) - the lab's debut model and a new provider (Mira Murati's team). Sparse MoE with 975B total / 41B active parameters, pretrained on 45T tokens of text, image, audio, and video. 1M context, open weights on Hugging Face, fine-tunable via Tinker. The lab is candid that it is "not the strongest overall model available today," emphasizing multimodal breadth and efficient reasoning. Self-reported at effort=0.99 (not independently verified): GPQA Diamond 87.2, AIME 2026 97.1, SWE-bench Verified 77.6. No first-party per-token pricing disclosed yet.
- Watch: Gemini 3.5 Pro still in preview, targeting July 17.
- 88 models across 19 providers
July 10, 2026
Grok 4.5, GPT-5.6 family (Sol, Terra, Luna)
- Added Grok 4.5 (xAI, July 8) - new flagship positioned as Opus-class, built on the 1.5T V9 foundation and trained on real Cursor session data for coding and agentic work. Artificial Analysis Intelligence Index 54 at launch (#4 overall, up 16 points over Grok 4.3); xAI claims ~4.2x fewer output tokens than Opus 4.8 on SWE-Bench Pro. 500K context, $2/$6 per 1M.
- Added the GPT-5.6 family (OpenAI, public July 9 after a gated preview from June 25) as three tiers, matching the GPT-5.5 pattern: Sol (flagship, SOTA on Terminal-Bench 2.1, $5/$30), Terra (mid, GPT-5.5-class at ~half the cost, $2.50/$15), and Luna (fastest and cheapest, $1/$6). All 1M context, with programmatic tool calling in the Responses API.
- Watch: Gemini 3.5 Pro still in preview, targeting July 17.
- 87 models across 18 providers
July 8, 2026
Claude Sonnet 5; Fable 5 & Mythos 5 back online
- Added Claude Sonnet 5 (June 30) - Anthropic's most agentic Sonnet, positioned close to Opus 4.8 at a lower price; replaced Sonnet 4.6 as the default on Claude.ai (Free/Pro). Humanity's Last Exam 34.6% (46.8% with tools), OSWorld-Verified 78.5%. 1M context, newer tokenizer (~30% more tokens). Intro pricing $2/$10 per 1M through Aug 31, then $3/$15 (batch 50% off). SWE-bench Verified and GPQA numbers vary across sources, pending system-card confirmation.
- Claude Fable 5 and Mythos 5 redeployed (July 1) - the US lifted the June 12 export-control order, so both are available again across all platforms. Updated their entries.
- Added LongCat-2.0 (Meituan, June 29) - a 1.6T open MoE agentic coding model (~48B active, 1M context) trained on a ~50,000-card domestic Chinese ASIC cluster. Ran anonymously as "Owl Alpha" and topped OpenRouter's coding usage charts for ~2 months before Meituan revealed it - added on demonstrated adoption. Vendor-reported benchmarks, independent verification pending: 59.5 SWE-Bench Pro, 70.8 Terminal-Bench 2.1, 77.3 SWE-Bench Multilingual. MIT license, full weights coming (INT8 posted). Meituan is the 18th provider.
- Watch (not added): GPT-5.6 (Sol/Terra/Luna) previewed June 26 but gated to ~20 US-gov-approved orgs; Gemini 3.5 Pro delayed to July 17 (architecture rebuild); Grok 4.5 in private beta.
- 83 models across 18 providers
June 27, 2026
Doubao Seed 2.1 Pro & Turbo (ByteDance)
- Added Doubao Seed 2.1 Pro (June 24) - ByteDance's first entry in the tracker. Flagship deep-thinking model for the coding/agent era, which ByteDance positions as comparable to GPT-5.5. Leads GDPval, MobileWorld, CharXiv-RQ, MeasureBench; #8 on Code Arena Frontend (1539, level with Claude Opus 4.6); top-tier on Agents' Last Exam. Multimodal (image + video). Closed, API via Doubao / Volcano Engine. ¥6/¥30 per 1M (~$0.83/$4.17). Parameters and context window not disclosed.
- Added Doubao Seed 2.1 Turbo (June 24) - low-cost, low-latency sibling for high-volume enterprise deployment, reported comparable to Pro. ¥3/¥15 per 1M (~$0.42/$2.08).
- Watch: Gemini 3.5 Pro (2M context, Deep Think) still in limited Vertex preview - no GA, no published specs/pricing/benchmarks, so not added.
- 81 models across 17 providers
June 21, 2026
Kimi K2.7 Code, GLM-5.2
- Added Kimi K2.7 Code (June 12) - Moonshot AI's coding-specialized 1T MoE / 32B active, built on K2.6. Mandatory thinking mode, ~30% fewer reasoning tokens than K2.6; MoonViT vision encoder for image and video input; native INT4. Moonshot reports +21.8% on Kimi Code Bench v2 over K2.6 - no independent SWE-Bench numbers published yet. 256K context. Open-weight, Modified MIT. $0.95/$4.00.
- Added GLM-5.2 (June 13) - Zhipu AI open-weight 753B MoE / 40B active. SWE-Bench Pro 62.1% (up from GLM-5.1's 58.4%), beating GPT-5.5 (58.6%). Terminal-Bench 2.1 81.0%, AIME 2026 99.2%, GPQA Diamond 91.2%, HLE 54.7% with tools. Selectable reasoning effort (High/Max). 1M context, up to 131K output. MIT license. $1.40/$4.40; GLM Coding Plan from ~$10/mo.
- Noted June 12 export-control suspension of Claude Fable 5 and Mythos 5 - Anthropic pulled both across all platforms (Anthropic API, AWS Bedrock, Google Cloud, Microsoft Foundry, Snowflake, Box) after a US directive it could not enforce by nationality in real time.
- 79 models across 16 providers
June 11, 2026
Claude Mythos 5, Claude Fable 5
- Added Claude Mythos 5 (June 9) - Anthropic's restricted Mythos-class frontier. Per System Card: 95.5% SWE-Bench Verified, 80.3% SWE-Bench Pro, 88.0% Terminal-Bench 2.1, 85.0% OSWorld-Verified, 94.1% GPQA Diamond (Anthropic now considers GPQA saturated), 59.0% HLE (64.5% w/tools), 88.0/93.3% BrowseComp single/multi-agent. 1M context. $10/$50. Restricted to Project Glasswing partners (US gov cyberdefenders) and select biomedical research orgs.
- Added Claude Fable 5 (June 9) - same underlying model as Mythos 5, with safety classifiers that fall back to Opus 4.8 for cyber/bio/chem/distillation queries. Per System Card: 95% SWE-Verified, 80% SWE-Pro, 84.3% Terminal-Bench 2.1, 85.0% OSWorld, 29.3 FrontierCode Diamond, 1932 GDPval-AA, 57.9% OfficeQA Pro. Anthropic cites Stripe's 50M-line Ruby migration in one day. 1M context. $10/$50 (batch $5/$25). Pro/Max/Team include Fable 5 free through 2026-06-22. Available via Anthropic API, AWS Bedrock, GitHub Copilot.
- Updated MiniMax M3 desc - weights commitment of ~June 11 has now slipped; huggingface.co/MiniMaxAI still showed only M2-series repos as of today.
- 77 models across 16 providers
June 4, 2026
MAI-Code-1-Flash, MAI-Thinking-1, MiniMax M3
- Added MAI-Code-1-Flash (June 2) - Microsoft's first in-house coding model. 5B active sparse MoE (total parameter count not published on Microsoft's pages). 51.2% SWE-Bench Pro (+16 over Claude Haiku 4.5). +28.9 IF Bench, 85.8% adversarial accuracy. Solves harder problems with up to 60% fewer tokens on SWE-Verified. Rolling out to VS Code GitHub Copilot.
- Added MAI-Thinking-1 (June 2) - Microsoft's first in-house reasoning model, not a distillation. 35B active sparse MoE (total not published). Per Build 2026 keynote: 52.8% SWE-Bench Pro (alongside Opus 4.6), 97.0% AIME 2025, 94.5% AIME 2026. 256K context. Private preview on Microsoft Foundry.
- Added MiniMax M3 (June 1) - open-weights-committed model combining frontier coding, 1M context, and native multimodality (image + video). Weights and technical report pledged for ~June 11. Built on MiniMax Sparse Attention (MSA) - 9x faster prefill, 15x faster decoding at 1M context. 59.0% SWE-Bench Pro vs Opus 4.8's 69.2% (released four days earlier), 66.0% Terminal-Bench 2.1, 70.06% OSWorld-Verified, 74.2% MCP Atlas, 83.5 BrowseComp. $0.60/$2.40 standard ($0.30/$1.20 promotional at launch).
- 75 models across 16 providers
May 28, 2026
Claude Opus 4.8, Grok Build 0.1, Cohere Command A+, Qwen3.7-Max GA
- Added Claude Opus 4.8 (May 28) - 88.6% SWE-Verified, 69.2% SWE-Pro, 93.6% GPQA Diamond, 83.4% OSWorld-Verified, 84% Online-Mind2Web. 1M context, $5/$25 standard, new Fast Mode at $10/$50 (3x cheaper than 4.7 Fast Mode). All benchmarks verified verbatim against the official Opus 4.8 System Card PDF.
- Added Grok Build 0.1 (May 20) - first xAI model purpose-built for agentic coding. 256K context, text+image, $1/$2 per 1M tokens. 88.9% PinchBench.
- Added Cohere Command A+ (May 20) - 218B sparse MoE / 25B active, Apache 2.0, multimodal (text+image+tool use). 128K input / 64K output. 75.1% MMMU, 80.6% MathVista, 37 Intelligence Index. Runs on two H100s at W4A4.
- Updated Qwen3.7-Max (May 20) - graduated from preview at Alibaba Cloud Summit. 92.4% GPQA Diamond, $2.50/$7.50, cached input $0.25. Lowest hallucination rate among frontier models (22.9%).
- 72 models across 16 providers
April 25, 2026
GPT-5.5, DeepSeek V4, Tencent Hy3
- Added GPT-5.5 (April 23) - first fully retrained base since GPT-4.5, 1M context, multimodal, $5/$30
- Added GPT-5.5 Pro (April 24) - higher-accuracy variant, $30/$180
- Added DeepSeek V4 Pro (April 24) - 1.6T/49B active, 90.1% GPQA Diamond, 80.6% SWE-bench, MIT license
- Added DeepSeek V4 Flash (April 24) - 284B/13B active, 88.1% GPQA Diamond, $0.14/$0.28, MIT license
- Added Tencent Hy3 Preview (April 23) - 295B/21B active, 87.2% GPQA Diamond, 74.4% SWE-bench, new provider
- DeepSeek V4 and Hy3 benchmarks verified against HuggingFace model cards
- GPT-5.5 benchmarks nulled pending primary source verification (OpenAI blog inaccessible)
- 66 models across 16 providers
April 23, 2026
7 new models, MCP server improvements
- Added Claude Opus 4.7 (April 16) - 87.6% SWE-bench Verified, 94.2% GPQA Diamond, xhigh effort level, 3.75MP vision
- Added GPT-Rosalind (April 16) - first domain-specific OpenAI model for life sciences
- Added Grok 4.3 Beta (April 17) - 2M context, native video understanding, SuperGrok Heavy only ($300/mo)
- Added Qwen3.6-Max-Preview (April 20) - top scores on 6 coding benchmarks, free preview on Bailian
- Added Qwen3.6-27B (April 22) - dense 27B open-weight vision model, 87.8% GPQA Diamond, 77.2% SWE-bench, 83.9% LiveCodeBench v6, Apache 2.0
- Added GPT-5.3-Codex (Feb 24) - agentic coding model, SOTA on SWE-Bench Pro, 400K context, $1.75/$14
- Added Gemini 3.1 Flash Lite (March 3) - most cost-efficient Google model, 1M context, $0.25/$1.50 per 1M tokens
- MCP server: improved tool descriptions with attribution URLs, reduced default limit from 50 to 25, disambiguated get/search tool pairs, added freshness cadence info
- 60 models across 15 providers
April 17, 2026
Qwen3.6-Plus and Qwen3.6 35B-A3B
- Added Qwen3.6-Plus (April 2, 2026) - proprietary flagship with 1M native context, 78.8% SWE-bench Verified
- Added Qwen3.6 35B-A3B (April 15, 2026) - open-weight MoE with 3B active / 35B total params, runs on laptops, Apache 2.0
- 44 models across 15 providers
April 12, 2026
Meta Muse Spark, Cohere Command A, nav restructure, production prep
- Added Meta Muse Spark (April 8, 2026) - first model from Meta Superintelligence Labs
- Added Cohere Command A (March 13, 2025) - 111B enterprise RAG model
- All provider logos now local (Anthropic, Google, Meta, Qwen, AWS, Cohere, IBM)
- Download weight icons from LobeHub (HuggingFace, Ollama dark mode)
- Resources nav restructured as mega menu with Research & Data section
- /research/ landing page created
- Newsletter forms fixed (Pipedrive marketing_status, correct worker URL)
- Subscribers differentiated: General Newsletter vs AI Model Tracker Updates
- Exact release dates for all 42 models (verified against official sources)
- Full site audit: 407 pages, 100% schema coverage, AEO avg 72
- 42 models across 14 providers
April 11, 2026
Selectable benchmark columns, new subpages, structural overhaul
- 10 benchmark columns now available (MMLU-Pro, GPQA Diamond, SWE-bench, HumanEval, LiveCodeBench, MATH, AIME, HLE, $/M In, $/M Out)
- Column picker - choose up to 5 visible columns, persists in localStorage
- Default sort changed to GPQA Diamond
- Cost calculator page
- JSON API endpoint (CC BY-NC 4.0)
- Releases timeline page with RSS feed
- Newsletter signup for tracker updates
- Sticky filter bar and table headers
- Hero redesigned with card links to subpages
- All URLs moved to /research/demandsphere-radar/ai-frontier-model-tracker/
- Proper breadcrumbs on all pages
- Added to nav menu and resource center
April 10, 2026
Data corrections and new models
- Full data audit - corrected 30+ benchmark scores, 6 release dates, 3 context windows, 4 pricing values
- Added Gemma 4 31B, Gemma 4 26B-A4B, Qwen3.5 397B-A17B, GPT-5.4 Mini
- Removed legacy models (GPT-4o, o1, GPT-5.2, Claude 3.5 Sonnet)
- Citations tab added with per-model source links
- Recent Releases feed section
- Provider count now dynamic
- Fixed license claims (Kimi K2 Apache->Modified MIT, Hermes 405B Apache->Llama 3.1)
- Set unpublished scores to null (Llama 4 HumanEval/MATH, DeepSeek HumanEval)
April 9, 2026
Initial launch
- 40 frontier models across 14 providers
- Sortable table with MMLU-Pro, HumanEval, MATH benchmarks
- Expandable rows with Detail, Benchmarks chart, News feed, Download Weights
- Filters: type, access, SOTA, multimodal
- Provider logos for OpenAI, xAI, DeepSeek, Moonshot, MiniMax, Mistral, Microsoft, Nous
- FAQ schema, OG image